Question

Question no. 6
Question in attachment.​

Answer 1

Step-by-step explanation:

Two adjacent angles =(LA +LB)

2LA+LB= 180°

LA=180°/2

LA=90°

Therefore angle LA = LB

LA=90°

LB=90°

LC=90°

LD=90°

Answer 2

Answer:

THE measure of each of the angles of parallelogram are 90

Step-by-step explanation:

Let ABCD be a parallelogram.

Sum of adjacent angles of a parallelogram = 180

now <A+<B=180

OR 2<A=180

OR <A=90

ALSO,90+<B=180

<B=180-90

OR<B=90

<A=<C=90

<B=<D=90

 

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