Question

The angles at a quadilateral are in the ratio ot 3:9:11:13 .find the angles of quadilateral

Answer 1

Answer:

The angles are 30°,90°,110° and 130°

Step-by-step explanation:

The angles at a quadrilateral are in the ratio of 3:9:11:13

The sum of angles in a quadrilateral is 360°

Let the angles be 3x,9x,11x and 13x

3x + 9x + 11x + 13x = 360°

36x = 360°

x = 360/36

x = 10°

=> 3x = 3(10°) = 30°

=> 9x = 9(10°) = 90°

=> 11x = 11(10°) = 110°

=> 13x = 13(10°) = 130°

The angles are 30°,90°,110° and 130°

Answer 2

Answer:

hope its clear

Step-by-step explanation:

Let the angles be :

3x + 9x + 11x + 13x + =360 degree

36x=360

x=360/36

x=10

3*10=30

9*10=90

11*10=110

13*10=130

so the angles are  

30 , 90 , 110 ,130