A machinist creates a washer by drilling a hole through the center of a circular piece of metal. If the piece of metal has a radius of x + 10 and the hole has a radius of x + 6, what is the area of the washer?

Valentina Holland 2022-09-23 Answered
A machinist creates a washer by drilling a hole through the center of a circular piece of metal. If the piece of metal has a radius of x + 10 and the hole has a radius of x + 6, what is the area of the washer?
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Answers (1)

gerasseltd9
Answered 2022-09-24 Author has 8 answers
Area of the Circle = π r 2
Area of the washer
= π ( ( x + 10 ) 2 - ( x + 6 ) 2 )
= π ( x + 10 + x + 6 ) ( x + 10 - x - 6 )
= π ( 2 x + 16 ) ( 10 - 6 )
= 8 π ( x + 8 )
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