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#### Resources tagged with Parallel lines similar to Weekly Problem 42 - 2009:

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##### Other tags that relate to Weekly Problem 42 - 2009
Angles. Angles at a point/on a line. Time. Mathematical modelling. Clock. Visualising. Mirrors. Calculating with fractions.

### There are 4 results

Broad Topics > 2D Geometry, Shape and Space > Parallel lines

### On Time

##### Stage: 3 Challenge Level:

On a clock the three hands - the second, minute and hour hands - are on the same axis. How often in a 24 hour day will the second hand be parallel to either of the two other hands?

### Sorting Letters

##### Stage: 1 and 2 Challenge Level:

This interactivity allows you to sort letters of the alphabet into two groups according to different properties.

### What Are You Plotting?

##### Stage: 2 Challenge Level:

Investigate the positions of points which have particular x and y coordinates. What do you notice?

### Parallel Lines

##### Stage: 3 Challenge Level:

How does the position of the line affect the equation of the line? What can you say about the equations of parallel lines?