Question

If angle 2 is 130°, what are the measures of 1, 3 and 4

Answer 1

The missing are 8°, 16°, 24°.

Let the missing angles be x, 2x, 3x.

X + 130° + 2x + 3x = 180°. (sum of angles is 180°)

6x + 130° = 180°

6x = 180°- 130°

6x = 50°

x = 50° ÷ 6

x = 8°

:. 2x = 8 × 2

16°

:. 3x = 8 × 3

24°

Explanation:

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