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3 years ago

PLEASE SOLVE FOR BRAINLIEST

Mathematics

2 answers:

velikii [3]3 years ago

7 0

Apply angle sum property

$\\ \tt\Rrightarrow 4x-12+63+45=180$

$\\ \tt\Rrightarrow 4x+51+45=180$

$\\ \tt\Rrightarrow 4x+96=180$

$\\ \tt\Rrightarrow 4x=84$

$\\ \tt\Rrightarrow x=21$

klemol [59]3 years ago

3 0

Answer:

x = 21°

Explanation:

All the interior angles of the triangle sum up to 180°

45 + 63 + 4x -12 = 180°

96° + 4x = 180°

4x = 180° - 96°

4x = 84°

x = 21°

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