Question

please solve this question ​

Answer 1

Step-by-step explanation:

Sum of all internal angles of a quadrilateral is 360°

Hence,

x + 10 + 2x + 20 + 3x - 30 + 2x - 40 = 360°

8x - 40 = 360°

8x = 360 + 40

x = 400/8

x = 50°

So, the angles of the quad. will be

50° + 10 ; 2(50) + 20 ; 3(50) - 30 ; 2(50) - 40

= 60°, 120°, 120°, 60°