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
Answers
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
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