Question

Isaac is cutting wood to build a clock. He wants the clock to have a long hand that extends from the center to the edge of the clock face. What must the approximate area of the face be if the hand he is using is 7 inches long? Use 3.14 for pi .

Answer 1

choices:
87.92 sq in.
38.47 sq in.
43.96 sq in.
153.86 sq in.

Answer 2

is the answer 38.47 sq in.?

Answer 3

\[area=pi∗r ^{2}\]
r=7
pi=3,14
just substitute this in the equation

Answer 4

\[r ^{2}=49--------->pi*49=?\]

Answer 5

153.86 sq in

because 3.14 * 49 = 153.86 sq in

Answer 6

yep, good job

Answer 7

Thanks so much! :)

Answer 8

yw