Question

A circular pool, 24 1/2 foot in diameter, is installed onto a rectangular yard (42 by 28 feet). The yard needs new sod. How much sod should be ordered to cover the yard? (use 3.14 and round 2 decimal places)

Answer 1

@Michele_Laino

Answer 2

here we have to compute the area of the yard, namely:
A = 42*28=...?

Answer 3

A=1176

Answer 4

ok!

Answer 5

now, we have to compute the area A of the circular pool, namely:
\[\large A = 3.14 \times {R^2}\]
where, as usual, R is the radius, and
R= D/2, D is the diameter

Answer 6

A=3.14* 1176^2?

Answer 7

the diameter is D= 49/2 = 24.5 feet
so the radius is:
R= 24.5/2= 12.25
finally A= 3.14*12.25^2=...?

Answer 8

471.19625

Answer 9

ok!

Answer 10

finally, your answer is given by the subsequent difference:
\[\large 1176 - 471.19 = ...?\]

Answer 11

Nice! you are so smart!

Answer 12

thanks!

Answer 13

yes!:)

Answer 14

:)