Question

answer b part also II. Do as directed:

16. Classify the following angles into acute, obtuse, right and reflex angle:

(i) 35°

(ii) 185°

(iii) 90°

(iv) 92°

(v) 260°

SECTION-B (OPTIONAL)

Extra practice questions

17. Identify which of the following pairs of angles are complementary or supplementary?

(i) 70°, 20°

(ii) 20°, 170°

(iii) 50°, 145°

(iv) 125°, 55°

(v) 105°, 75°

(vi) 55°, 35°

18. Find the complement of each of the following angles:

(i) 40°

(ii) 27°

(iii) 35°

19. Find the supplement of each of the following angles?

(i) 100°

(ii) 90°

(iii) 110°

(iv) 107​

Answer 1

Answer:

(i) 35° - acute angle because the measure is less than 90°.

(ii) 185° - reflex angle because the measure is greater than 180° and less than 360°.

(iii) 90° - an angle with measure of 90° is a right angle.

(iv) 92° - obtuse angle because the measure is greater than 90° and less than 180°.

(v) 260° - reflex angle because the measure is greater than 180° and less than 360°.

hope it help

Answer 2

16.

acute = 35°

right = 90°

obtuse = 92 °

reflex = 185° & 260°

17.

complementary = 70 &20 , 55&35

supplementary =105 &75 , 125&55 , 145&35 ,170&20

18.

compliment of 40 = 50

of 27 =63

of 35 = 55

19.

supplement of 100 = 80

of 90 = 90

of 110 = 70

of 107 = 73