Angles - Introduction

How is an angle formed?

• When a line curves.

• When two rays, lines or line segments meet or cross.

• When two circles cross.

What is the name of the part of the angle where the two points meet?

• angle

• point

• vertex

What are the sides of the angle called?

• arms

• vertex

• feet

What is the red part of the image called?

• vertex

• curve

• angle

How many angles are in the image?

• 5

• 3

• 4

How many angles are in the image?

• 2

• 5

• 4

Are these angles?

• yes

• no

Are these angles?

• yes

• no

Which object has an angle?

• ball

• snake

• box

What two things below can form angles? (select two)

• head

• classroom chart

• hands on a clock

• crescent moon