In circle o, ab = 12 centimeters and maob = 60°. since 60° is of 360° then the length of is the circumference of the circle. use this fact to find the exact length of

In Circle O, length of minor arc AB = 12 centimeters

<AOB = 60°.

Since 60° is one sixth of 360°

So the length of the arc must be one sixth of the circumference or length of the circle.

Arc AB= 12

So Arc AB = of circumference

Cross multiplying we get

Circumference C = 12 ×6 = 72 cm

Hence the circumference of the circle whose arc measures 12 cm making 60° as the central angle is 72 cm.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)