Answer:
1) Sin 36= a/25
a=25 sin 36
a= 14.69
Cos 36= b/25
b= 25 Cos 36
b= 20.23
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2) Sin 43= y/25
y= 25 sin43
y= 17.05
Cos 43= x/25
x= 25Cos 43
x= 18.28
3) s= 42.58
r= 177/Cos 20
r= 124.51
hope it helps...
have a great day!!
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