Geometry unit 11 volume and surface area quiz 11 1
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Unit 11: Volume and Surface Area Homework 1: Area of Plane Figures- Find Area.
Asked by wiki @ in Mathematics viewed by 3487 People
Unit 11: Volume and Surface Area Homework 1: Area of Plane Figures- Find Area.
Answered by wiki @
Answer:
4. 432 cm^2/2 = 216 cm^2
6. 309.76 mm^2
8. pi * 22^2 = 484pi (or, approximately 1,519.76) in^2
484/2 = 242pi or 759.88 in^2.
10. 297.84 in^2/2 = 148.92 in^2
Step-by-step explanation:
To find the area of a triangle, you take the base and multiply by the height, and then divide by 2. Hence giving me the answers I obtained in #4 and #10.
A square is equal on all sides, so you would just square the measurement of the one side.
To find the area of a circle, you would do pi times the radius^2. Since this is a semicircle, you actually should divide the number you got by 2. (Which is why I did so up above).
I hope this helps!
Answered by kobe2089 @
Answered by wiki @
Answered by wiki @
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