Geo. M2 L1 1.1 & 1.2 Angle and Arc Relationship

Front

What is the total distance around a circle called?

Back

Circumference

Front

Is the radius always twice the diameter?

Back

Never True

Front

What is a Major Arc?

Back

An arc that measures more than half of the circle.

Front

What do you call an arc that measures one-half of the circle?

Back

Semicircle

Front

If an angle measures 20° and you need to find x, what is x if the total is 180°?

Back

x = 160°

Front

What is the relationship between the diameter and radius of a circle?

Back

The diameter is twice the radius.

Front

What is the measure of a full circle in degrees?

Back

360°

Front

What is a Minor Arc?

Back

An arc that measures less than half of the circle.

Front

How do you calculate the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.