In the triangle PQR, PQ = 29 cm, QR = 21 cm and PR = 20 cm.
Question:
In the triangle PQR, PQ = 29 cm, QR = 21 cm and PR = 20 cm.
a. Show that the triangle is right-angled.
b. Write down the values of sin Q, cos Q and tan Q, leaving your answers as fractions.
c. Use your answers to part b to show that:
i. sin2 Q + cos2 Q = 1
ii. tan Q = sin Q/ cos Q
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Step by Step Answer:
Given 1 PQ 29 cm Hypotenuse 2 RQ 21 cm Base 3 PR 20 cm Perpendicular Solution We know that the Pytha...View the full answer
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Related Book For 
Cambridge IGCSE And O Level Additional Mathematics
ISBN: 9781510421646
1st Edition
Authors: Val Hanrahan, Jeanette Powell
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