Year 10
Core
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Lesson details
Key learning points
- In this lesson, we will learn about the conditions for congruent shapes and identify congruent shapes.
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.
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
3 Questions
Q1.
Give a reason why this pair of triangles are congruent.
AAS
ASA
RHS
Q2.
Give a reason why this pair of triangles are congruent.
AAS
ASA
SSS
Q3.
If this pair of triangles are congruent, which statement is correct?
a < b
a > b