Square Roots and Angles

What kind of angle is this?

• Obtuse

• Acute

• Right

• Straight

What type of angle is this?

• Obtuse

• Acute

• Straight

• Right

What is the measure of this angle?

• 174

• 9

• 150

• 15

How many degrees is this angle?

Mark used a protractor to measure the angle, and he said the angle was 75°. His answer is not correct. What mistake did he make?

• He used the wrong set of numbers to measure.

• He didn’t line up the vertex with the center of the protractor.

• He didn’t line up one ray of the angle with the bottom of the protractor.

• He didn’t make a mistake. The angle is 75°.

Measure to the nearest 10 degrees.

• 10^°
• 20°
• 170°
• 160°

Measure to the nearest 10 degrees.

• 80^°
• 90°
• 100°
• 110°

5²

What is 11²

What is the square root of √16?

• 4
• 8
• 2
• 9