Q3 of 45 Page 97

Write down the measures of

(a) some acute angles.


(b) some obtuse angles.


(Give two examples of each).

(a) Acute angles is the angle which is less than 90° so the examples are; 30°, 45°, 60° and 70°


(b) Obtuse angle is the angle which is greater than 90° but less than 180° and the examples are; 110°, 120°, 135° and 170°.


More from this chapter

All 45 →
1

What is the measure of

(i) a right angle?


(ii) a straight angle?

 2

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.

 4

Measure the angles given below, using the Protractor and write down the measure.


 5

Which angle has a large measure? First estimate and then measure.

Measure of ∠A =


Measure of ∠B =