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Work out the size of angle x

Work out the size of angle x-example-1
User Tej Kiran
by
6.2k points

1 Answer

3 votes

Answer:

x = 121°

Explanation:

The lower left interior angle of the triangle is adjacent to 115° and are supplementary, thus

interior angle = 180° - 115° = 65°

The angle round a point is 360°

The vertex interior angle = 360° - 304° = 56°

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle of the triangle, thus

x = 65° + 56° = 121°

User John Wigger
by
7.2k points
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