Drawing lines and angles accurately

1 Draweachoftheanglesaccurately.

Usethelineprovidedaspartofyourangle.

a) 60degrees

b) 85°

c) 110°

d) 143°

2 Dexterisaskedtodrawanangleof30degrees.

Hemarksapointasshown.

WhatmistakehasDextermade?

3 Drawanangleof100°oneachline.

Usethelinestoformpartoftheangle.

©WhiteRoseMaths2020

9080

100

70

11060

12050

13040

140

30

150

20

160

10

170

0 180

1800

17010

16020150

30140

40

130

50

120

60

110

70

100

80

©WhiteRoseMaths2020

4 Drawthreeanglesthatallmeasure55°.

Eachangleshouldbeinadifferentorientation.

5 Drawtheselinesandanglesaccuratelyusingarulerandprotractor.

a)

b)

6 Makeanaccuratedrawingoftheshape.

7 Drawthetriangleaccuratelyandworkoutitsperimeter.

perimeter= mm

70°3cm

5cm

45°3cm

4.5cm

5cm

3.9cm

48mm

40°

63°

45mm 60° 54mm