Question

Quadrilateral ABCD has the following angle measures. Find the Measure of angle A.

B: 59°
C: 103°
D: 100°

Answer 1

∠A = 98

Explanation:

total sum of angles in a quadrilateral is 360

∠A + ∠B + ∠C +∠D = 360

∠A + 59 + 103 + 100 = 360

∠A + 262 = 360

∠A = 360- 262

∠A = 98