2 years ago

1) what is the value of x ?

Mathematics

1 answer:

Vikentia [17]2 years ago

6 0

Answer:

a). x = 9

b). m∠ABC = 27°

c). m∠CBD = 153°

Step-by-step explanation:

1). Property of linear pair of angles states, "sum of linear pair of angles is 180°"

3x + (15x + 18) = 180°

18x + 18 = 180

18x = 180 - 18

18x = 162

x = 9

2). m∠ABC = 3x°

= 3×9

= 27°

3). m∠CBD = (15x + 18)°

= (15×9 + 18)°

= (135 + 18)°

= 153°

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