StudySquare
Cosine for OCR GCSE Maths
This page covers the following topics:
1. Cosine
Cosine of an angle is a ratio between the side adjacent to the angle and the hypotenuse of a triangle.
1
Find a if cosB = 0.9 and c = 40.
36
2
Find a if cosB = 0.3 and c = 20 cm.
6 cm
3
Find b if cosA = 0.5 and c = 10.8.
5.4
4
Find cosA if b = 3.5 cm and c = 14 cm.
1/4 or 0.25
5
Find cosB if a = 2 and c = 12.
1/6
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