Calculate and correct to three significant figures, the length of an arc subtends an angle of 70o at the center of the circle radius 4cm. [Take π = 22/7]
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Correct Answer: Option B
Explanation:
Circumference of circle = 2πr = 2 x 3.14 x 4
= 25.1cm 360o = 25.1cm70o =
25.1/360
x 70 = 4.89
Circumference of circle = 2πr = 2 x 3.14 x 4
= 25.1cm 360o = 25.1cm70o =
25.1/360
x 70 = 4.89