Understanding and applying theorems and properties about circles

Find the measure of arc RT.

• 123
• 83
• 52
• 24

What is the measure of Arc HI?

Calculate the length of the bold arc.

• 61.3 ft

• 20.4 ft

• 7351.3 ft

• 22,068 ft

Find the length of the arc to 2dp

• 2.09m

• 301.59m

• 1.05m

• 2.51m

Given that m∠AOB = 13π/18 and the radius is 8 cm, what is the length of arc AB?

• 13π/8 cm

• 52π/9 cm

• π/9 cm

• 9π/52

• I don't know

What is the MEASURE of arc AB?

• $\frac{1}{4}\pi$

• $54\pi$

• 140 degrees

• 110 degrees

4. measure of arc PS

• 161

• 71

• 199

• 109

• 270

Find the radius of Circle R.

• $4$

• $\frac{45}{2}$

• $45\pi$

• $7$

The diameter of the circle is 8 miles. What is the angle measure of an arc  $3\pi$ miles long?