Question

b. The measures of the angles in BCD are in the extended ratio of 2:3:4. Find the measures of the angles.

Answer 1

Let the ratios be x

then , 2x, 3x , 4x

Explanation:

2x+3x+4x = 180°

9x= 180°

x= 180÷ 9

x = 20

now, 2x = 2×20

40°

3x=3×20

60°

4x= 4×20

80°