Answer:
Step-by-step explanation:
17.020
the surface area is 72 sq cm
hooe this helped
Answer:
d
Step-by-step explanation:
Answer:
By definition, considering a unit circle (circle centered at origin and of radius 1) the length of an arc is equal to the measurement in radians (the SI unit for measuring angles) of the angle that it subtends (to be opposite to). The length of the arc is equal to the radius of the circle.
