Description
Explanation & Answer
1 :- Cos (60 deg) = 18 / x
x = 18 / Cos (60 deg)
x = 18 / 0.5
x = 36
Sine (60 deg) = y / 18
y = 18 * Sine (60 deg)
y = 18 * 0.866
y = 15.588
Or
y = 16
2 :- x = y * Cos (30 deg)
y = x / Cos (30 deg)
3 :- Cos (30 deg) = 7 / y
y = 7 / Cos (30 deg)
y = 7 / 0.866
y = 8.083
4 :- Cos (30 deg) = y / 6
y = 6 * Cos (30 deg)
y = 6 * 0.866
y = 5.196
5 :- Cos (60 deg) = 21 / y
y = 21 / Cos (60 deg)
y = 21 / 0.5
y = 42
Sine (60 deg) = x / 21
x = 21 * Sine (60 deg)
x = 21 * 0.866
x = 18.186
6 :- Cos (30 deg) = 9.5 / y
y = 9.5 / Cos (30 deg)
y = 9.5 / 0.866
y = 10.96
Or
y = 11
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