https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-parallelogram-area/v/finding-height-of-a-parallelogram 2023-06-30T00:54:25.287354524Z Finding height of a parallelogram In this lesson, we learned that the area of a parallelogram equals the base times the height. Given an area of 24 units and a base of 6 units, we used this formula to find the missing height. The answer was 4 units. Isn't math fun? video https://cdn.kastatic.org/ka_thumbnails_cache/c702545c-0bbc-4ce1-9d2f-0c23c5a17d52_1280_720_base.png Finding height of a parallelogram In this lesson, we learned that the area of a parallelogram equals the base times the height. Given an area of 24 units and a base of 6 units, we used this formula to find the missing height. The answer was 4 units. Isn't math fun? https://cdn.kastatic.org/ka-youtube-converted/SKe3ItfdzTY.mp4/SKe3ItfdzTY.mp4 102 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-parallelogram-area/e/find-missing-side-when-given-area-of-a-parallelogram 2026-04-29T22:00:43.265153248Z Find missing length when given area of a parallelogram Find the base or height of a parallelogram when given the other and the area. Lindsay exercise https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-area-triangle/v/intuition-for-area-of-a-triangle 2023-06-30T00:54:25.287354524Z Area of a triangle The area of a rectangle and a parallelogram is found by multiplying the base by the height. For a triangle, the area is half of a parallelogram's, so it's calculated by multiplying the base by the height and then dividing by 2. video https://cdn.kastatic.org/googleusercontent/Fi9pR66SMMyijKzoyFIw6a2cHjUub-HncPLAlfT0a90llRBEciMFgGmv-CAlSSHoRNi9iIgUuqiBYzHBnwv9yt4 Area of a triangle The area of a rectangle and a parallelogram is found by multiplying the base by the height. For a triangle, the area is half of a parallelogram's, so it's calculated by multiplying the base by the height and then dividing by 2. https://cdn.kastatic.org/ka-youtube-converted/rRTXKQpblEc.mp4/rRTXKQpblEc.mp4 330 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-area-triangle/e/find-base-and-height-on-a-triangle 2026-04-08T01:19:59.083532605Z Find base and height on a triangle Identify the height of a triangle as the segment perpendicular to the base and reaching the other vertex. Lindsay exercise https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-parallelogram-area/v/intuition-for-area-of-a-parallelogram 2023-06-30T00:54:25.287354524Z Area of a parallelogram Discover the magic of geometry! The area of a rectangle and a parallelogram can be calculated in the same way. Just multiply the base by the height! This simple trick works because a parallelogram can be rearranged into a rectangle. Geometry is full of surprises! video https://cdn.kastatic.org/googleusercontent/obiKP_sTiYrTr2fcbjLKQd_D2WPPutmNxH_iXMfLCXGMXZfuweYw8KyoZdldr2mQFrC5n9vLBH0H_xSehXBS4vEV Area of a parallelogram Discover the magic of geometry! The area of a rectangle and a parallelogram can be calculated in the same way. Just multiply the base by the height! This simple trick works because a parallelogram can be rearranged into a rectangle. Geometry is full of surprises! https://cdn.kastatic.org/ka-youtube-converted/hm17lVaor0Q.mp4/hm17lVaor0Q.mp4 177 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-parallelogram-area/e/area_of_parallelograms 2025-02-07T09:32:27.480992556Z Area of parallelograms Practice finding the area of parallelograms given base and height. Omar Rizwan exercise https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-area-triangle/v/example-finding-area-of-triangle 2023-06-30T00:54:25.287354524Z Finding area of triangles The area of a triangle is found by multiplying one half of the base by the height. In our example, the base is 18 and the height is 6. So, half of 18 is 9, and 9 times 6 equals 54 square units. video https://cdn.kastatic.org/ka_thumbnails_cache/37c62636-15f6-4d9d-90c1-44bfdef4fbea_1280_720_base.png Finding area of triangles The area of a triangle is found by multiplying one half of the base by the height. In our example, the base is 18 and the height is 6. So, half of 18 is 9, and 9 times 6 equals 54 square units. https://cdn.kastatic.org/ka-youtube-converted/7N5orPxUoGo.mp4/7N5orPxUoGo.mp4 91 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-area-triangle/e/area_of_triangles_1 2026-03-24T23:41:07.080866137Z Area of triangles Practice finding the area of right, acute, and obtuse triangles. Chanda Stanaland Johnson exercise https://www.khanacademy.org/math/geometry-home/geometry-area-perimeter/geometry-area-trap-composite/v/area-of-a-trapezoid-1 2023-04-15T06:42:38.642148315Z Area of trapezoids Area of a trapezoid is found with the formula, A=(a+b)h/2. To find the area of a trapezoid, you need to know the lengths of the two parallel sides (the "bases") and the height. Add the lengths of the two bases together, and then multiply by the height. Finally, divide by 2 to get the area of the trapezoid. Sal Khan video https://cdn.kastatic.org/googleusercontent/2Qf_I9kn1tNDqsjFdl-9bjcHfFsPAwH-C-Wl-UTQIxVSY-8daxkrR9NlhBsu4tE4JgvWXA32HaInnk33giWNBfC6 Area of trapezoids Area of a trapezoid is found with the formula, A=(a+b)h/2. To find the area of a trapezoid, you need to know the lengths of the two parallel sides (the "bases") and the height. Add the lengths of the two bases together, and then multiply by the height. Finally, divide by 2 to get the area of the trapezoid. https://cdn.kastatic.org/ka-youtube-converted/j3-XYLnxJDY.mp4/j3-XYLnxJDY.mp4 288 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/geometry-home/geometry-area-perimeter/geometry-area-trap-composite/e/areas_of_trapezoids_rhombi_and_kites 2026-03-24T23:41:07.080866137Z Area of trapezoids Practice finding the areas of trapezoids. Omar Rizwan exercise https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-parallelogram-area/a/area-of-parallelogram 2023-12-11T22:10:22.66384181Z Area of parallelograms Understand how to find the area of a parallelogram and why it works. article https://www.khanacademy.org/math/cc-sixth-grade-math/x0267d782:cc-6th-plane-figures/cc-6th-area-triangle/a/area-of-triangle 2021-06-30T20:49:25Z Area of triangles Intuition for why the area of a triangle is one half of base times height.  article https://www.khanacademy.org/math/geometry-home/geometry-area-perimeter/geometry-area-shapes-grids/v/area-of-strange-quadrilateral 2021-02-16T16:08:13Z Area of a quadrilateral on a grid Learn to break up oddly shaped quadrilaterals into shapes where finding the area is more easily determined. Sal Khan video https://cdn.kastatic.org/googleusercontent/H3rkw6GA8F6BKxk2OuTDuaykGzTgRX4TJpPQ13WRI9D5L9Rt22TrsDDfe7hShwgxSGLeZ3mRgiGVI0hET4JHRlpwew Area of a quadrilateral on a grid Learn to break up oddly shaped quadrilaterals into shapes where finding the area is more easily determined. https://cdn.kastatic.org/ka-youtube-converted/gkifo46--JA.mp4/gkifo46--JA.mp4 234 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/geometry-home/geometry-area-perimeter/geometry-area-shapes-grids/v/area-of-triangle-in-grid 2021-02-16T16:08:13Z Area of a triangle on a grid Learn how to calculate the area of a triangle on a grid. Sal Khan video https://cdn.kastatic.org/googleusercontent/r5CdCWwIB9Iz6_k6TOITt11w8RkM6QVe6JG3aubCUFay_5I8tRCnNoOd0MCle2tRCsIYpjl14-qicduZTX0HZEQL Area of a triangle on a grid Learn how to calculate the area of a triangle on a grid. https://cdn.kastatic.org/ka-youtube-converted/ukPjc3Oyad4.mp4/ukPjc3Oyad4.mp4 417 Areas of a parallelogram, triangle, and trapezoid https://www.khanacademy.org/math/geometry-home/geometry-area-perimeter/geometry-area-shapes-grids/e/area-of-triangles-2 2026-04-07T23:36:17.218592739Z Areas of shapes on grids Practice finding the areas of triangles and quadrilaterals on grids. Rhonda Hughes exercise