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## Geometry 218-221

### Unit 1: Lesson 1

Areas of parallelograms

# Area of a parallelogram

Understand why the formula for the area of a parallelogram is base times height, just like the formula for the area of a rectangle.

## Want to join the conversation?

• I have 3 questions:

1. Dose it mater if u put it like this: A= b x h or do you switch it around?

2. Will it work for circles?

3. How many different kinds of parallelograms does it work for?

And may I have a upvote because I have not been getting any.
• It doesn't matter if u switch bxh around, because its just multiplying. When you multiply 5x7 you get 35. If you multiply 7x5 what do you get? You get the same answer, 35.

2.There is a diffrent formula for a circle, triangle, cimi circle, it goes on and on. The formula for circle is:
A= Pi x R squared.
• What is the formula for a solid shape like cubes and pyramids?
• That is a great question to ask us. 1st, you undo the net, then you multiply all of the square's, then you want to add them. Kra-BOOM! Genius!
• 1. Does it work on a quadrilaterals?
2. Can this also be used for a circle?
Sorry for so my useless questions :(
• The formula for quadrilaterals like rectangles
and parallelograms is always base times height.
The formula for a circle is pi to the radius squared.
Also these questions are not useless. :)
(1 vote)
• What is the formula for a solid shape like cubes and pyramids
• In geometry, a pyramid is a polyhedron formed by connecting a polygonal base and a point, called the apex. Each base edge and apex form a triangle, called a lateral face. It is a conic solid with polygonal base.
• What about parallelograms that are sheared to the point that the height line goes outside of the base? I can't manipulate the geometry like I can with the other ones. Would it still work in those instances?
• then how do we get the tip of the area
• This video was very helpful, thank you.
• How do you do quantum mechanics