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Mathematics 13 Online
OpenStudy (fuzzybird):

help w/ area please

OpenStudy (fuzzybird):

OpenStudy (samwisegamge):

6 * 20

OpenStudy (fuzzybird):

= 120

OpenStudy (abdullahm):

We need to split the figure into two. We have a semi-circle and a parallelogram. You found the area for the parallelogram. Now, let's find the area of the semi-circle!

OpenStudy (fuzzybird):

Okay, @AbdullahM so how do I do that

OpenStudy (fuzzybird):

3.14 x 20?

OpenStudy (abdullahm):

Area of a semicircle = 1/2 * \(\pi\) * \( r^2\) The diameter is 20, which means the radius is 10.

OpenStudy (abdullahm):

And instead of \(\pi\), they want you to replace it with 3.14 which is its approximate value. So: Area = \(\bf \frac{1}{2} \times 3.14 \times (10)^2\)

OpenStudy (abdullahm):

@fuzzybird

OpenStudy (fuzzybird):

sorry @AbdullahM i'm here.

OpenStudy (fuzzybird):

157 is the answer to the problem you gave me, am I correct? @AbdullahM

OpenStudy (fuzzybird):

and then the two added together makes 277 which is our answer right?

OpenStudy (abdullahm):

Correct. Now we add that to the other area you calculated which was 120. What is 157 + 120 = ?

OpenStudy (abdullahm):

That is correct!

OpenStudy (fuzzybird):

Thank you!

OpenStudy (abdullahm):

It was my pleasure!

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