# maths

#1
The difference between the actual heights of the buildings is 20 metres.

Work out the height of the taller building.

Note: the height of the small building on the drawing is 4.5 cm, and the height of the tall building is 6 cm.
0
3 months ago
#2
The height difference irl is 20m, and on paper the same difference is 15mm (1.5cm). Therefore you know that every mm on paper represents 20/15 m irl. Multiply that ratio by the taller building's on paper height in mm (60) to get the irl height.

Last edited by oliveraptor6; 3 months ago
2
3 months ago
#3
you need to work out the scale for the model, like how many cm on paper is 1m in real life
1
3 months ago
#4
(Original post by oliveraptor6)
Height
Do not give answers - it's against forum rules.
0
3 months ago
#5
(Original post by Muttley79)
Do not give answers - it's against forum rules.
0
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