Answer:
The measure of the larger angle = 100°
Step-by-step explanation:
∵ The measure of the supplementary angles = 180°
∵ The ratio between them is 4 : 5
Let the smaller is 4x and the larger is 5x
∴ 4x + 5x = 180
∴ 9x = 180°
∴ x = 180 ÷ 9 = 20
∴ The measure of the larger angle = 5 × 20 = 100°
