Question

Answer the 27 question As soon as possible

Answer 1

Look, let's suppose each of those small unknown angles are x and y respectively.

So, then by angle sum property of a quadrilateral

50+80+2x+2y = 360

or,

x+y = 1/2(230) = 115°

Now,

in traingle APB

Required angle = 180° - (x+y)

= 180-115 = 65°

So, yep that's the answer to this question 27.

Answer 2

Answer:

in this question angle A + angle B=230(asp of quadilateral) and halves of angle a and angle b = 115 and in traingle apb

angle p = 180-angle a/2 - angle b/2

so apb=65 degree