Question

a circular disc of radius 6cm is divided into three sectors with central angles 90°,120° and 150° . what central angle 150°? also, calculate the ratios of the areas of the three sectors
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Answer 1

Answer:

RATIO. 3 : 4 : 5

Step-by-step explanation:

GIVEN:

RADIUS = x = 6 cm

Central angles : 90 , 120 , 150

TO FIND. :

RATIO OF 3 SECTORS

SOLUTION :

$a = \frac{90}{360} \times \pi {x}^{2} \\ \\ b = \frac{120}{360} \times \pi {x}^{2} \\ \\ \\ c = \frac{150}{360} \times \pi {x}^{2}$

a : b : c = 90 : 120 : 150

a : b : c = 3 : 4 : 5 (ANSWER)