Question

prove that sum of the angles of a quadilateral is 360 degree

Answer 1

the proof that sum of angles of a quadrilateral is equal to 360 degrees

Answer 2

let the angles be x,2x,3x,4x

sum of angles of a quadrilatetal=360
x+2x+3x+4x=360
10x=360
x=360÷10
x=36

x=36
2x=36×2= 72
3x=36×3=108
4x=36×4=144

36+72+108+144=360.

hence it is proven.