Know Tangent Sine and Cosine Maths Miss Davies

Know Tangent, Sine and Cosine Maths Miss Davies 1

Know Tangent, Sine and Cosine 1. Label the sides of the right-angled 2. Identify a right-angled triangles. which includes the labelled angle and 37 o a) b) label its sides. a) 24 o b) 37 o c) 37 o d) c) d) 60 o 2 42 o 34 o

Know Tangent, Sine and Cosine 3. Label the sides of the right-angled 4. Dustin is finding the side labelled x. triangles and identify which ratio will What mistake has he made in his be used. labelling? a) b) “The hypotenuse is always the longest diagonal side”. H A 37 o O 5. Amir is finding the side labelled x. c) d) What mistake has he made? O “We don’t know the H 7 cm 3 A 37 o adjacent side, so need to use Cosine”

Answers 4

Know Tangent, Sine and Cosine 1. Label the sides of the right-angled 2. Identify a right-angled triangles. which includes the labelled angle and a) A H O O 37 o H O 5 H A 37 o A O H label its sides. a) b) 37 o A c) b) 37 o d) c) d)

Know Tangent, Sine and Cosine 3. Label the sides of the right-angled triangles and identify which ratio will be used. Cosine a) Sine O H 6 A b) H A c) Tangent O Sine O d) H

Know Tangent, Sine and Cosine 4. Dustin is finding the side labelled x. What mistake has he made in his labelling? “The hypotenuse is always the longest diagonal side”. H A 37 o The hypotenuse is always the longest side, opposite the right angle. It doesn’t have to be diagonal. O 5. Amir is finding the side labelled x. What mistake has he made? O “We don’t know the H 7 cm 7 A 37 o adjacent side, so need to use Cosine” Amir is trying to find the opposite side, he should use Sine.