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Find m∠abd and m∠cbd given m∠abc = 111°.

a) m∠abd = 34°, m∠cbd = 77°
b) m∠abd = 77°, m∠cbd = 34°
c) m∠abd = 111°, m∠cbd = 0°
d) m∠abd = 0°, m∠cbd = 111°

1 Answer

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The value of m∠ABD = 88º

The value of m∠CBD = 23º

Given

m∠ABC = 111∘

m∠ABD = (-10x+58)∘

m∠CBD = (6x+41)∘

(-10x + 58) + (6x + 41) = 111

Combine like terms

-4x + 99 = 111

Subtract 99 from both sides

-4x = 12

Divide both sides by -4

x = -3

m∠ABD = -10x + 58

m∠ABD = -10(-3) + 58

m∠ABD = = 30 + 58

m∠ABD = 88º

m∠CBD = 6x + 41

m∠CBD = 6(-3) + 41

m∠CBD = -18 + 41

m∠CBD = 23º

Complete question:

Find m∠ABD and m∠CBD given m∠ABC = 111∘

The Equations are (-10x+58)∘ and (6x+41∘)

Find m∠abd and m∠cbd given m∠abc = 111°. a) m∠abd = 34°, m∠cbd = 77° b) m∠abd = 77°, m-example-1
User Kimomaru
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