Question

In a quadrilateral 2angles are 20°,80°find other 2 angles if both are equal

Answer 1

Answer:

Angles of quadrilateral are 1,2,3 and 4

Given :- A quadrilateral angle 1 and angles 2 are 20 degree and 80 degree respectively and angle 3 and angle 4 are equal

Let angle 3 and angle 4 be x

Now, 1+2+3+4 = 360

(Angle sum property of a quadrilateral)

20+80+x+x = 360

2x = 360-100

x = 260/2

x = 130

Hence, the two angles are 130 degrees