Question 67

Match List I with List II.

List I (Measure of an angle)

A. $$80^\circ$$

B. $$90^\circ$$

C. $$120^\circ$$

D. $$200^\circ$$

List II (Type of angle)

i. Reflex angle

ii. Obtuse angle

iii. Acute angle

iv. Right angle

Choose the correct answer from the options given below.

Solution

An angle of $$80^\circ$$ is less than $$90^\circ$$, so it is acute (iii). An angle of exactly $$90^\circ$$ is a right angle (iv), $$120^\circ$$ lies between $$90^\circ$$ and $$180^\circ$$ so it is obtuse (ii), and $$200^\circ$$ lies between $$180^\circ$$ and $$360^\circ$$ so it is reflex (i). This is option d.

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