Question

2. The angles of a quadrilateral are in the ratio
3:5:7:9. Find the four angles.​

Answer 1

Answer:

sum of all angles of a quadrilateral is 360°

Let the ratios be x

3x+5x+7x+9x=360°

24x=360°

x=360°/24

x=15°

so ,

3x=45°

5x=75°

7x==105°

9x=135°

Answer 2

Answer:

Let the angles be 3x, 5x, 7x, 9x

3x+5x+7x+9x= 360° ( sum of all angles of a quadrilateral is 360°)

24x = 360°

x = 360 /24

x = 15°

so the angles are (15×3)..45°, (15×5)..75°, (15 × 7 )...105°, (15×9)....135°

so the angles are 45°,75°,105°,135°.

HoPE it will help you...

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