The blue and red lines are equal in length.

The blue line is longer than the red line.

The blue line is shorter than the red line.

Which statement best describes the blue and red lines shown in the diagram?

What is the length of the missing side of the triangle, labelled n?

What is the length of the missing side of the triangle, labelled m?

Key Stage 3

Finding the length of a line from tilted squares

Which of the values shown below is a surd?

What is the area of the tilted green square, in square units?

What's the area of the square below, in square units?

What's the length of one side of the square  shown below?

Which of the following squares has a surd side length?