Answer:
B: 3
Step-by-step explanation:
The expression would be 14m + 23 = 65.
14m + 23 - 23 = 65 - 23 =
14m = 42
14m ÷ 14 = 42 ÷ 14 =
m = 3
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sin(90-a)=cos
cos = angle adjacent
theta=BC/CA
2.5 cm
We see the diameter is 5cm
so the radius is half the diameter
5/2 = 2.5 cm
