Revision - Geometry

• equilateral triangle

• isosceles triangle

• right-angled triangle

• scalene triangle

Two sides are equal in length.

Two angles are equal in size.

The characteristics of the above triangle belong to. . . .

• equilateral triangle

• isosceles triangle

• right-angled triangle

• scalene triangle

• equilateral triangle

• isosceles triangle

• right-angled triangle

• scalene triangle

In the following picture, AB is parallel to CD. ∠ACE is 140°.

The size of angle ACB is . . . degrees.

Angle y is . . . degrees.

Triangle AEB and DEC are right-angled triangles.
Find the value of x.

The diagram shows a kite.

The size of angle a is . . . degrees.

Each interior angle of a regular polygon is 140 degrees.

How many sides does the polygon have?

The diagram shows

a regular pentagon and a regular octagon.

The size of the angle marked x is . . . degrees.

These triangles are similar.

The length of side a is . . . cm