Question

Work out the value of X

Answer 1

as , 4x + 5x = 180 ° ( corresponding angles )

so , 9x = 180°

x = 180° /9

x = 20°

so 4x = 4 × 20 = 80 °

and 5x = 5× 20 = 100°

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Answer 2

Answer:

4x+5x=180(cointerior angles)

=9x=180

x=180÷9

x=20

4x=4×20=80

5x=5×20=100