Question

If one of the four angles formed by two intersecting lines is a right angle then each of the four angle is :-

a) An acute angle

b) An right angle

c) An obtuse angle

d) None of these
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Answer 1

Step-by-step explanation:

b) a right angle

reason: if one angle is 90°, then the angle opposite to it (by opposite angle property) and the angle adjacent to it ( supplementary angles) will both be 90°.

Thus, all the angles will be right angles