2 years ago

Help, I'm so confused I would love an explanation T-T

Mathematics

1 answer:

julsineya [31]2 years ago

8 0

-47 is the answer I'm sure I'm sorry if I'm wrong

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Answer:

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Step-by-step explanation:

Given

$\theta = 158^o$

$\alpha = 99^o$

Required

The third exterior angle $(\beta)$

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So:

$\theta + \alpha + \beta = 360^o$

Make $\beta$ the subject

$\beta = 360^o - (\theta + \alpha)$

Substitute known values

$\beta = 360^o - (158^o + 99^o)$

$\beta = 103^o$

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