1.

What is the arc length of m AB= 45 degree ; length of AB = r = 5 cm.

Answer»

θ = 45o

r = 5 cm

Length of the arc = 2πrθ/360

= (2 x 3.14 x 5 cm x 45o)/ 360

= 1413/360 cm

= 3.925 cm



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