Trigonometry involves calculating angles and sides in triangles.

What is the name for the side of the triangle y?

Opposite

Adjacent

Hypotenuse

Which trigonometric ratio should be used to find the length of the adjacent side?

Sin

Cos

Tan

Which trigonometric ratio calculates the sin of x?

Which trigonometric ratio should be used to find the length of y?

Which calculation shows the correct working to find y?

6 × sin 35 = y

sin (35 × 6) = y

What is the length of y?

10.46 cm

3.44 cm

- 0.5 cm

Which calculation shows the correct working to find the size of angle x?

What is the size of angle x?

33.7°

0.03°

56.3°

What is the name of this trigonometric graph?

y = sin x

y = cos x

y = tan x

What is the formula for the area of a triangle?

a^{2} = b^{2} + c^{2} - 2bc cos A