Year 9 Spring 1 Higher

AB is a straight line.

Work out the value of w.

Diagram is not drawn accurately

The diagram shows two straight lines.

Write down the value of x.

Not drawn accurately

The diagram shows a right-angled triangle.

Work out the value of y.

Not drawn accurately

Work out the size of angle x

Not drawn accurately

BC is an isosceles triangle.

AB = BC

Work out the value of x.

Not drawn accurately

BC is an isosceles triangle.

AB = BC

Work out the value of y.

Not drawn accurately

This is a regular pentagon.

Work out the size of angle x.

Not drawn accurately

This is a regular pentagon.

Which of the following is correct?

• $x+y=360$

• $y=\frac{540}{x}$

• $5y=540$

• $y=2x$

• $y\ =\ x\ -180$

The diagram shows part of a regular polygon.

Each interior angle is 162°.

Calculate the number of sides of the polygon.

Not drawn accurately.

Write down the value of a.

Not drawn accurately