Question

the angles of a quadrilateral are (x-20)°,(x+30)°,(x-10)° and 2x°. find the measure of the greatest angle​

Answer 1

Answer:

by angle sum property of quadrilateral

X + X - 10 + X + 30 + 2 x= 360

5 x + 20=360

5x=340

x=68

now the angles are 68, 58, 98, 136

show the biggest angle is 136 that is 2x

Answer 2

Answer:

sum of all angles of quadrilateral = 360

=now x-20 + x + 30 + x -10 + 2x = 360

=so x= 72

measure of greatest angle = 2x =2×72 =144

Step-by-step explanation: I hope this will help uhh !