2 years ago

What is the value of angle X and angle Y in the triangle diagram below?

Mathematics

1 answer:

andre [41]2 years ago

3 0

Sum of two interior angles=exterior angle

$\\ \rm\Rrightarrow 45+65=y$

$\\ \rm\Rrightarrow y=110$

Linear pairs have sum 180

$\\ \rm\Rrightarrow x+y=180$

$\\ \rm\Rrightarrow x+110=180$

$\\ \rm\Rrightarrow x=70$

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