Question

angles formed by two intersecting lines is right angle show that other three also right angle​

Answer 1

Answer:

here is your proof

Step-by-step explanation:

let angles,be a,b,c,d

a=90

a+b=180(straight line)

90+b=180

b=90

similarly b,c are linear pair

c,d are linear pair

d,a are linear pair

hence,all are 90°

hope it helps you

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