Question

In quadilateral ABCD angle A is equal to 3 X degree angle b is equal to 5 x degree angle C is equal to 20 X degree and Angle d is equal to 8 x degree find the value of x
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Answer 1

Answer:

sum of all angles of quadrilateral is 360°

7x+3x+20x+8x=360°

28x=360°

x=360/28

x=12.8°

Answer 2

Answer:

x=10

Step-by-step explanation:

in a quadrilateral sum of all angles is equal to 360

so ,

3x+5x+8x+20x = 360

36x = 360

x = 10