Question

If one of the angles formed by two intersecting lines is a right angle, what can you say about the other three angles? ​

Answer 1

Answer:

If one of the angles formed by two intersecting lines is a right angle, what can you say about the other three angles? Give reason for your answer. Answer: All the other angles should be at right angles

Answer 2

Answer:

LetABandCDbe two lines Intersecting at O, such that,

∠AOD=

90

∘

Now,

∠AOD=

∠COB=

90

∘

(Vertically opposite angles)

⟹

∠AOD+

∠DOB=

180

o

(Angles on a straight line)

⟹

90+

∠DOB=

180

o

∠DOB=

90

∘

∠DOB=

∠AOC=

90

∘

(Vertically opposite angles)

Thus, all angles are

90