Question

Find the value of x in the given figure​

Answer 1

Answer:

( 5x - 60 ) + ( 2x + 40 ) + ( 3x - 80 ) = 180

10x -100 = 180

10x = 280

x = 280 / 10

x = 28°

option A

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Answer 2

Answer:

5x-60⁰+2x+40⁰+3x-80⁰ = 180⁰ (angle sum property of triangle)

10x -20⁰-80⁰=180⁰

10x-100 = 180

10(x-10) = 180

x-10 = 180÷10

x-10 = 18

x = 18+10

x = 28

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