Answer:
A. (125.6 in)
Step-by-step explanation:
R = d / 2 = 40 / 2 = 20 in
Circumference is:
S = 2*π*R=2*3.14*20=125.6 in
21+
15
2
+
3
2
+
15
13
LCD = 1515
21+
15
2
+
3×5
2×5
+
15
13
21+
15
2+10+13
21+1
15
10
22
15
10
15
10
3
2
22
3
2
done
the answer of this question is last one
Cot = Cos/Sin
Cos = 12/13
Sin = 5/13
Therefore, 12/3 divided by 5/13 equals 12/5
Answer is 1.
