Question

in a circle of radius 10.5 cm, and arc of the circle is 11cm find the degree measure of that arc

Answer 1

Answer:

60°

Step-by-step explanation:

Circumference of circle= 2πr

= 2×(22/7)×10.5

= 66 cm

An arc of the circle is nothing but the small segment of a complete circle. Here 66cm is a complete length (or circumference) of a circle. The complete circle had 360°. From this we find that the angle covered by 11 cm arc.

66 cm= 360°

11 cm= ?

= (11×360)÷66

= 60°