Area of a circle = PI*radius^2
10 inch diameter = 5 inch radius
Area = PI* 5^2
Area =
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78.5398163397
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Answer is B)
Answer:

Explanation: We need to find the area of the triangle, We know that the area of any right triangle is:

Therefore in the information given we have the following:

Therefore the Area of this triangle is as follows:

Note! Units are centimeter-squared
The answer to your question is: x=10. y=2
78×45/100
=35.1. As a result, 35.1 is 45% of 78. Hope it help!
1.7088061E11 on a calculator that's what I did