Match the following:

(i) Straight angle (a) Less than one-fourth of a revolution

(ii) Right angle (b) More than half a revolution

(iii) Acute angle (c) Half of a revolution

(iv) Obtuse angle (d) One-fourth of a revolution

(v) Reflex angle (e) Between of a revolution

(f) One complete revolution

Q.

Question 1

Match the following:

(i) Straight angle (a) less than one-fourth a revolution
(ii) Right angle (b) more than half a revolution
(iii) Acute angle (c) half of a revolution
(iv) Obtuse angle (d) one-fourth a revolution
(v) Reflex angle (e) between $\frac{1}{4}$ and $\frac{1}{2}$ of a revolution
(f) One complete revolution

Q. An angle which measures more than 180° but less than 360° is called
(a) an acute angle
(b) an obtuse angle
(c) a straight angle
(d) a reflex angle

Q.

Say True or False:

(a) The measure of an acute angle < 90°

(b) The measure of an obtuse angle < 90°

(c) The measure of a reflex angle > 180°

(d) The measure of one complete revolution = 360°

(e) If m∠A = 53° and m∠B = 35°, then m∠A > m∠B.

Q.

Question 11
If the sum of two angles is greater than ${180}^{\circ }$, then which of the following is not possible for the two angles?
a) One obtuse angle and one acute angle
b) One reflex angle and one acute angle
c) Two obtuse angles
d) Two right angles

Q. An angle which measures more than ${90}^{\circ }$ and less than ${180}^{\circ }$ is called a/an ____.