Question

Work out the value of x

Answer 1

Answer:

20

Step-by-step explanation:

• 4x + 5x = 180° (angles on the same side of transversal)

• 9x = 180°

• x = 180°/9

• x = 20°

Answer 2

Answer:

• $\sf x=20^o$

Step-by-step explanation:

Consecutive interior angles are (supplementary angle) meaning that the sum of the consecutive interior angles is 180.

$\sf 4x +5x=180^o$

$\sf 9x = 180^0$

$\sf \cfrac{9x}{9} =\cfrac{180}{9}$

$\sf x=20^o$

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