The back of a dog house is composed of a square and a triangle . How much wood wood is needed for the back of the dog house to t
he nearest tenth of square foot. Pls use pi with formula of area and also use a expression
1 answer:
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Answer:
19.72 cm²
Step-by-step explanation:
A solid circular cylinder has a base radius 5 cm and a height 12.5 cm.
The volume of cylinder is given by :
When r = 5.05, new volum becomes,
Increase in area = 1000.97 - 981.25 = 19.72 cm²
So, the increase in surface area of the cylinder is equal to 19.72 cm².