Question

Find the unknown angles marked in the figure below
1. <P=40°, <Q=50°, <R=30°
2. <P=60°, <Q=90°, <R=30
3.<P=60°, <Q=75°, <R=45°​

Answer 1

Answer:

3. <P =60° , <Q=75° , <R = 45°

Step-by-step explanation:

4x + 5x + 3x = 180°

12x = 180

x = 180 ÷ 12

x = 15

Hence , < P = 4x

= 4 × 15 = 60°

<Q = 5x = 5 × 15 = 75°

< R = 3x = 3 × 15 = 45°