- What scale factor is used to convert Circle A into Circle B. (1 mark)
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- Complete this equation:
- Area of Circle A = _____ × Area of Circle B. (1 mark)
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Similarity, SMB-025
A triangular prism is pictured below.
By what factor will its volume change if
- Each dimension is doubled? (1 mark)
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- Each dimension is decreased by two-thirds? (2 marks)
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Similarity, SMB-016
Triangle I and Triangle II are similar. Pairs of equal angles are shown.
Find the area of Triangle II? (3 marks)
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Similarity, SMB-012
Poppy uses a photocopier to enlarge this picture.
The enlarged picture is 3 times as high and 3 times as wide as the original.
By what factor is the area of the picture increased? (2 marks)
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Measurement, STD1 M5 2021 HSC 26
The diagrams show two similar shapes. The dimensions of the small shape are enlarged by a scale factor of 1.5 to produce the large shape.
Calculate the area of the large shape. (3 marks)
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Measurement, STD1 M5 2020 HSC 28
Two similar right-angled triangles are shown.
The length of side
The area of triangle
Calculate the length in centimetres of side
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