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What is the area of this figure?

 

 Sep 19, 2020
 #1
avatar+29 
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Area = 7*9 + pi*(5^2/2) + 7*4 = 91 + 25/2*pi

the idea is spliting your figure to 2 rectangles and 1/2 circle.

 Sep 19, 2020
 #2
avatar+10319 
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What is the area of this figure?

 

Hello Guest!

 

\(A=9\times 3\ dm^2+(9+7)\times 4\ dm^2+(9+7-4-2)^2\times\frac{3.14}{4\cdot 2}\ dm^2\)

\(A=130.25 \ dm^2\)

laugh  !

 Sep 19, 2020
edited by asinus  Sep 19, 2020
 #4
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130.25 cm2 = 1.3025 dm2 smiley

Guest Sep 19, 2020
 #3
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A = 7 * 9 + 7 * 4 + ( 52 * 3.14 ) / 2 = 130.25 cm2

 Sep 19, 2020
edited by Guest  Sep 19, 2020
 #5
avatar+111127 
+1

Why have you all done this person's homework.

Wouldn't they have more chance of learning something if you just gave hints? 

 Sep 19, 2020

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