In ABC, AB = 4 cm, BC = (x + 2) cm and AC = 7 cm.
Question:
In △ABC, AB = 4 cm, BC = (x + 2) cm and AC = 7 cm.
a. Explain how you know that 1
b. Work out the value of x and the area of the triangle for the cases wheni. ∠ABC = 60° andii. ∠ABC = 45°, giving your answers to 3 significant figures.
Transcribed Image Text:
4 cm B 7cm (x + 2) cm >C
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a To determine if ABC is a valid triangle we can use the Triangle Inequality Theorem According to the theorem the sum of the lengths of any two sides ...View the full answer
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Related Book For
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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