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I Question 7 (2 of 13) Find area of shaded region. Round to the nearest tenth. 50 cm radius: 20 cm 80 cm Enter your answer by clicking the bubbles.
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I Question 7 (2 of 13)

Find area of shaded region. Round to the nearest tenth.
50 cm
radius: 20 cm
80 cm
Enter your answer by clicking the bubbles.

I Question 7 (2 of 13) Find area of shaded region. Round to the nearest tenth. 50 cm-example-1
User Robby Shaw
by
4.9k points

1 Answer

8 votes
Method:
Area of trapezium - Area of a half circle

Trapezium = 40(50+80) divided by 2

= 2600

Half circle = 1/2 x pi x 20^2

= 628.3185....
~ 628.3

2600 - 628.3 = 1971.7 cm^2

Hope this helps!!



User Craig Fisher
by
5.1k points
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