Question

In a parallelogram ABCD,angle
A= (4x-5)º and angle C =(3x+10)⁰
Find angle A and B.​

Answer 1

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Being the opposite sides, A & C are equal.

So,

(4x-5) = (3x+10)

=> 4x-3x = 10+5

=> x = 15

So the angle is 4x - 5 = 4×15 - 5 = 60-5=55°

So, B & D are also equal.

Their values are:-  (180°-55°)=125°

                           thank you !