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L7/8 Teacher's Notes Topic: SSM - Pythag, sim triangles Pythagoras (a) Use Pythagoras' theorem to explain why triangle A must be right-angled. (b) Triangle.

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Presentation on theme: "L7/8 Teacher's Notes Topic: SSM - Pythag, sim triangles Pythagoras (a) Use Pythagoras' theorem to explain why triangle A must be right-angled. (b) Triangle."— Presentation transcript:

1 L7/8 Teacher's Notes Topic: SSM - Pythag, sim triangles Pythagoras (a) Use Pythagoras' theorem to explain why triangle A must be right-angled. (b) Triangle A is enlarged to make triangle B. Use similar triangles to show that d = 9.2cm How many ways can you do this? (c) The diagram shows the Earth and two other planets. Planet P is 6.9 x 10 7 km from Earth. Planet Q is 9.2 x 10 7 km from Earth. How far is Planet P from Planet Q ? Give your answer in standard form.

2 Pythagoras (a) Use Pythagoras' theorem to explain why triangle A must be right-angled.

3 (b) Triangle A is enlarged to make triangle B. Use similar triangles to show that d = 9.2cm

4 (c) The diagram shows the Earth and two other planets. Planet P is 6.9 x 10 7 km from Earth. Planet Q is 9.2 x 10 7 km from Earth. How far is Planet P from Planet Q ? Give your answer in standard form.

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