1.

In the adjoining figures, find out the value of x.

Answer»

ANSWER:

a) x=130°

b) x=20°

Step-by-step explanation:

a) x is the EXTERIOR angle=sum of two INTERIOR angles=60+70=130°

b) exterior angle=sum of two interior

=)120=50+4x-10

=)120=4x+40

=)80=4x

=)x=80/4=20°



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