Question

find x value in the triangle a is 30 degree b is 100 degree c 65 degree d s 20 degree

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Answer 1

Measure of a triangle is 180⁰

so,30⁰+ 100⁰+20⁰+x=180⁰

=)150⁰+x=180⁰

=)x=180⁰-150⁰

=)x= 30⁰

:. x= 30⁰