If the radius of a bicycle tire is 10 inches, what is its circumference?
A. 31.4 in.
B. 62.8 IN.
C.314 IN.
D. 20 IN
E. NONE CORRECT

Circumference: 2 x r

r = 10

2 (3.14) x 10 = C

2 x 3.14 = 6.28

6.28 x 10 = 62.8

Therefore, your answer is B. 62.8 IN.

Have a great day!

answer:

option a is correct.

rotation of 270 degrees counterclockwise about the origin

step-by-step explanation:

the rule of rotation 270 degrees counterclockwise about the origin is given by:

from the figure:

the coordinates of rectangle abcd are

a(-1, 2),   b(-1, 5), c(-3, 5) and d(-3, 2)

the coordinated of rectangle a'b'c'd' are

a'(2, 1),   b'(5, 1), c'(5, 3) and d'(2, 3)

these points are in the form of

therefore, the transformation did kim perform to create rectangle a'b'c'd' is:

rotation of 270 degrees counterclockwise about the origin