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nexus9112 [7]
4 years ago
5

Find the value of x.

Mathematics
1 answer:
Crank4 years ago
8 0
∠A=66
∠B=x
∠C=?
∠D=117

Ok, lets sovle for ∠C first.
180-117=∠C
63=∠C

Ok, now we can solve for ∠B or x.
66+63+x=180
129+x=180
-129     -129
x=51

Hope this helps!  :)
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