7th grade (Eureka Math/EngageNY)
- Exploring scale copies
- Explore scale copies
- Corresponding points and sides of scaled shapes
- Corresponding sides and points
- Identifying scale copies
- Identify scale copies
- Identifying scale factors
- Identify scale factor in scale drawings
- Identifying values in scale copies
- Scale drawing: centimeters to kilometers
- Making a scale drawing
- Construct scale drawings
- Interpreting a scale drawing
- Solving a scale drawing word problem
- Scale drawing word problems
Use scale drawings to solve problems in real-world contexts.
Practice problem 1: Two figures
Figure is a scale image of Figure .
What is the value of ?
Practice problem 2: Map
Alexander is drawing a map of the Federal Triangle in Washington, D.C. The actual Federal Triangle has a base of feet and height of feet. Alexander needs his drawing to fit on his paper, so he decides to make the base of his triangle inches.
What scale is Alexander using?
What is the height of Alexander's triangle in inches?
Practice problem 3: Scale model
Rena is building a scale model of a real castle. Her model has a rectangular base that is feet wide and feet long.
What is the area of the base of the actual castle in square feet?
Practice problem 4: Moon challenge
The earth is approximately miles in diameter. The moon is approximately miles in diameter. The distance between the two is approximately miles.
You build a two-dimensional scale model of the earth and moon. You use a circle with a diameter of inch to model the moon.
In your model, what is the diameter of the earth in inches?
In your model, what is the distance between the moon and the earth in inches?
Want to join the conversation?
- why am i struggling so bad with basic math lol(41 votes)
- The first two questions are kinda hard to understand. Can someone simplify them for me?(12 votes)
- for number two its 1 inch for 300 feet its easy for the second part after that(2 votes)
- I don't understand the 2nd question. Can someone explain it to me?(7 votes)
- the scale is1:180. The model of it is 3 feet high and 4 feet wide, so you do 180 x 3 and 180 x 4. After doing that you multiply both of them together.(4 votes)
- who created or made up math?(5 votes)
- Beginning in the 6th century BC with the Pythagoreans, the Ancient Greeks began a systematic study of mathematics as a subject in its own right with Greek mathematics. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.
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