+0  
 
-2
77
4
avatar+88 

i need help on this question it is very hard for me
thanks if u help!
i need hellp

 

 Apr 12, 2020
edited by kijijij  Apr 12, 2020
edited by kijijij  Apr 12, 2020
 #1
avatar+21004 
+2

Volume  =  (Area of Base) x (Height)

 

Height = 72 cm

 

The base is a trapezoid -- Area of Base  =  ½·(height)·(base1 + base2)

                                                                 =  ½·(65)·(80 + 50)

                                                                 =  4225

 

Volume  =  (4225) x (72)  =  304.200 cubic centimeters.

 Apr 12, 2020
 #2
avatar+88 
-2

can you also try to do the other ones?

kijijij  Apr 12, 2020
 #3
avatar+71 
+1

10) if we lay the cube flat, the rectangle with corners A, B becomes 8*6. to find the diagonal would be like finding the third side of a right triangle. 8^2+6^2 = c^2 => c = 10 => the shortest distance is 10 units.

 Apr 12, 2020
 #4
avatar
+1

11. The soccer ball has 52 faces with 20 pentagons.

 Apr 12, 2020

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