If angle of a sector is 115
the central angle would be 115 also
as the arc measure is equal to the measure of its central angle
Answer:
109 square feet.
Step-by-step explanation:
109 in: = 109/12 = 9.0833333.... = 9 5/60 = (540+5)/60 = 545/60
Area = L*w
L = 545/60 feet
W = 12 feet
Area = 545/60 * 12
Area = 545*12/60
Area = 545 /5 = 109 square feet.
Answer:
V = 135π in3; S = 105π in2
Step-by-step explanation:
<span>You are not supposed to be wallpapering the ceiling or the floor. Because of that the formula to answering this question is: 2(h*w) + 2(l*w) [to account for the 4 walls being wallpapered]
2(9 x 18) + 2(9 x 20)
2(162) + 2(180)
324 + 360
684 is the answer
</span>