Question

Don't Rubbish
answer in details
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Answer 1

Answer:

answer

Step-by-step explanation:

The sum of all the angles in a quadrilateral is 360 degrees.

Since the opposite angles are supplementary and equal, then <A + <B = <C + <D = 180.

Then all the angles (each ) is equal to 90 degrees

Answer 2

Answer:

90° each angle

Step-by-step explanation:

Let consider a question quadrilateral ABCD

it is given that

<A = <C

<A + <C = 180°

So <A =<C = 90°

<B +<D = 180°

<B = <D = 90°

SO ALL ANGLES WILL BE 90°

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