Geometry SOL Review #3

Front

What is the measure of a minor arc in a circle?

Back

A minor arc is the shorter arc connecting two points on a circle. Its measure is less than 180 degrees.

Front

How do you find the measure of an arc given the central angle?

Back

The measure of an arc is equal to the measure of the central angle that subtends it.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius of the circle.

Front

If the radius of a circle is 7 cm, what is the circumference?

Back

C = 2π(7) = 14π cm (approximately 43.98 cm).

Front

What is the relationship between the angles and arcs in a circle?

Back

The measure of an inscribed angle is half the measure of the intercepted arc.

Front

How do you calculate the length of an arc?

Back

Arc length = (θ/360) * C, where θ is the central angle in degrees and C is the circumference.

Front

What is the measure of a semicircle?

Back

A semicircle measures 180 degrees.

Front

If two angles are inscribed in the same arc, what can be said about their measures?

Back

The inscribed angles are equal.

Front

What is the value of x if the equation is 2x + 6 = 12?

Back

x = 3.

Front

What is the value of x if the equation is 3x - 9 = 0?

Back

x = 3.