Year 10
Higher
Find missing lengths in similar shapes which have sides overlapping
Year 10
Higher
Find missing lengths in similar shapes which have sides overlapping
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Lesson details
Key learning points
- In this lesson, we will find missing side lengths for similar shapes which have side lengths overlapping
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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3 Questions
Q1.
The two shapes are similar. What is the scale factor of the enlargement?
3
4
5
Q2.
These two shapes are similar, what is the length of side marked x?
16 cm
2.5 cm
9 cm
Q3.
These two shapes are similar, what is the length of side marked x?
10 cm
16 cm
4 cm
3 Questions
Q1.
Triangle ABC is similar to triangle ADE. What is the length of side marked x? (not drawn to scale)
12 cm
15 cm
16 cm
Q2.
The diagram (not drawn to scale) shows two similar triangles. Work out the side length AD.
22 cm
27.5 cm
5.5 cm
Q3.
The diagram (not drawn to scale) shows two similar triangles. Work out the side length BD.
16.5 cm
22 cm
27.5 cm