Track quiz
Here is the whole chapter on one screen. Then seven quick questions.
| Idea | What to remember |
|---|---|
| Point, line, ray, segment | Told apart by their ends. |
| Two lines | They cross at one point, or they are parallel and never meet. |
| What is an angle | The turn between two rays with one vertex. |
| Measuring | A full turn is 360°. A protractor reads the size. |
| Kinds of angles | Acute < 90°. Right = 90°. Obtuse 90°–180°. Straight = 180°. Reflex 180°–360°. |
| Drawing | Centre on the vertex. Mark the degree. Draw the ray. |
| Angles around us | Compare the numbers, not the drawings. |
A figure has one fixed end. The other end goes on for ever. What is it?
Two lines never meet, however far they go. What are they called?
Two rays start at one point. What is that point called?
How many degrees are in a full turn?
Two angles are both 40°. One has short arms. One has long arms. What is true?
An angle is 65°. What kind is it?
The clock hands make 180°. What time could it be?
Chapter 2, Lines and Angles, is now yours. Read it with a protractor in hand.
Next: Number Play — digits, palindromes and quick estimates.