in a circle of radius 7 centimetre subtends an angle 108 at the centre find area of the sector
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Answers
Answered by
2
Explanation:
In a circle of radius 7 cm, an arc subtends an angle of 108∘ at the centre. The area of the sector is
A) 43.2 cm2
B) 44.2 cm2
C) 45.2 cm2
D) 46.2 cm2
Correct Answer:
D) 46.2 cm2
Description for Correct answer:
Area of setor = θ360×πr2
= 108360×227×49 cm2
= 46.2 cm2
Answered by
3
Explanation:
area of sector = s = (thita)/360×pi×r^2
= 108/360×22/7×7×7
= 3/10×22×7
= 462/10
= 46.2 cm^2
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