Question

.A patio in the shape of a semicircle has a diameter of 21 ft.

What is the approximate area of the patio, rounded to the nearest square foot?
Use 3.14 to approximate pi.

Answer 1

ok first do 3.14*10.5 to the second power

Answer 2

then divide that answer by 2 to get your final answer

Answer 3

how do i do "to the second power"?

Answer 4

10.5 times itself

Answer 5

so is it 544 ft2?

Answer 6

you should have got 173

Answer 7

can u show ur work?

Answer 8

10.5*10.5=110.25
110.25*3.14=346.185
346.185/2=173

Answer 9

thx can u help me with 1 more?

Answer 10

sure thing

Answer 11

.What is the approximate area of the shaded region?



A.
104.86 cm²

B.
87.47 cm²

C.
27.02 cm²

D.
10.54 cm²