Question

Solve for 42.
42 = [?]°
42
130⁰
41
84°

Answer 1

Answer is 46°

Explanation:

using the property that angels inside a triangle add up to 180°

84 + ✓2 +✓ 1 = 180°

also angels on a straight line add up to 180° (supplementary angels)

130 + ✓1 = 180

✓1 = 50°

thus

84 + 50 +✓2 = 180

✓2 = 46°

Answer 2

42=42+130+41+84

that's your answer