If a triangle has a base of 14 cm and a height of 20 cm, find it's area.

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A cylinder is 12 " tall and has a radius of 4", find it's volume.
 

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A rectangular prism has a length of 4', a width of 3' and a height of 5'.
Find it's surface area, and it's volume.






 

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Find the difference in the areas of a square having a side of 8  units, and a circle which has a diameter of the same length.
 

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The following are answers to the given problems. 
Find the mistake in each solution:
Rectangle; l = 7', w = 4'
Area = 28'

Cube; l = 3", w = 5", h = 4"
Volume = 60 sq."

Triangle; s₁ =10cm, s₂ = 8cm,
s₃ = 14cm
Perimeter = 32 cubic cm
 

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