8)
<1 = 90
answer is a. 90
9)
k = 180 - 23 - 77
k = 80
answer is c.80
10)
x = 180 - 60 - 42
x = 78
z = 180 - 78
z = 102
y = 180 - 11 - 102
y = 67
answer is c x = 78 y = 67 z = 102
You didn’t tell us how you want to figure it out
The formula to find the area of a sector = Ф*r²/2
Ф to be in radian, here Ф=45° =π/4
sector = 1/2(π/4)x 100
sector = 39.27 ≈39.3° (B)
Answer:
1. 87x20(4) divided by 20.
Step-by-step explanation:
97+x=27+64
x=27+64-97
x=-6
(Hopefully this is correct)
