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Question


Which of the following statements is not correct?


Options:
A .   An angle which is greater than 180 but less than 360 is called a reflex angle.
B .   An angle greater than 0 but less than 90 is called an acute angle.
C .   If the sum of two angles is 90, then they are called supplementary angles.
D .   An angle greater than 90 but less than 180 is called an obtuse angle.
Answer: Option C
:
C
a)An acute angle measures between 0 and 90, whereas a right angle is exactly equal to 90.
b)An angle greater than 90 but less than 180 is called an obtuse angle.
c)An angle which is greater than 180 but less than 360 is called a reflex angle.
d)If the sum of two angles is 90, then they are called complementary angles and if the sum is 180, then they are called supplementary angles.

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