Question

2. If AB , across the window, measures 25 inches, calculate the area of the window in square inches.

3. If AB , across the window, measures 18 inches, calculate the area of semicircle AGB in square inches.

Answer 1

formula for finding area of a circle
\[\huge \pi r^2\]

r is the radius, which is 1/2 of the diameter AB

Answer 2

do u know the answer?

Answer 3

radius = 25/2 = 12.5

\[\huge \pi 12.5^2\]
490.9 in^2

Answer 4

do the same for B to find the area, then divide by 2 because it's asking for the semicircle

Answer 5

isnt 156.25 pi?

Answer 6

and the second one is 162 pi

Answer 7

9 is the radius, not 18

Answer 8

(9^2 pi)/2

Answer 9

so its 40.5 pi?

Answer 10

yea

Answer 11

n for the first one is 156.25 pi?

Answer 12

yea

Answer 13

somehow i dont see any window.. i see only circle and diameter..
whats "across the window" mean ?