+0  
 
-2
110
5
avatar+24 

can somebody help please
for part a my teacher somehow got 67.824 can someone explain to me how my teacher got this value

 May 29, 2020
edited by HyperYauFarer  May 29, 2020
 #1
avatar+21953 
+1

My answer has three parts:

1)  The right side:  Area  =  length x width  =  8 m x 2.4 m  =  19.2 square meters

2)  The left side is the same as the right side:  19.2 square meters

3)  The top = ½ the circumference of the circle x length

                   =  ½ x (pi x diameter) x length  =  ½ x pi x 3.6 m x 8 m  =  45.239 square meters.

 

Adding them together:  19.2 + 19.2 + 45.239  =  83.639 square meters.

 May 29, 2020
 #2
avatar+12423 
0

I also have this solution

laugh

 May 29, 2020
 #3
avatar+24 
-2

where is 3.6

 May 29, 2020
 #4
avatar+12423 
0

3.6m is the diameter. 1.8m is the radius.

 May 29, 2020
 #5
avatar+24 
-2

ok but where is 3.6 in UR equation

 May 29, 2020

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