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Help please with this math ;-; I beg of you

Help please with this math ;-; I beg of you-example-1
User Kath
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2 Answers

7 votes

Answer:

49 - 9π

Explanation:

Hope this helps

User Yuchao Zhou
by
8.0k points
6 votes

Answer:

49 - 9π

Explanation:

Area of white portion = area of triangle - area of circle

To find the area of the triangle:

The area of a triangle can be calculated using this formula


A=(bh)/(2) where b = base length and h = height

The height given is 7m and the base length given is 14m

That being said we plug in the given values into the formula


(14*7)/(2) \\14*7=98\\(98)/(2) =49

Hence, the area of the triangle is 49 sq meters.

To find the area of circle

( note that the area is in terms of pi; shown by the answer choices. )

Formula for area of a circle =
A=\pi r^2

We are given the diameter ( 6m )

However, we need the radius

To convert diameter to radius we divide by 2

6/2 = 3 so the radius = 3m

Now we plug in 3 into the formula


A=\pi 3^2\\3^2=9\\A=9\pi

Remember we do not apply pi because the answer should be in terms of pi.

Now we subtract the two

Area of white portion = 49 - 9π

Hence, the answer is A

User NightEye
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