FORM 3CHAPER 9

SCALE DRAWING

DRAWING GEOMETRY SHAPES ACCORDING TO A SCALE OF 1: n

- Scale of a drawing in a ratio- Actual shape

Exercise:

1. Draw the figure shown on a grid paper according to scale

a) 1: 1/2 b) 1:2

2. Draw the figure to a scale of 1: 10. From the drawing, measure and calculate the actual length of CD.

3. In the diagram, triangle TUV is a scale drawing of triangle PQR. Find the scale used.

4. PQR is a plan of a building drawn to a scale of 1:200. Find the actual length of QR in meter (m).

5.

2 cm

3 cm

The diagram shows a plan of a piece of land drawn to a scale of 1:2000.Find the actual area of the land.