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?
\[sin\: x = \frac{opposite}{hypotenuse}\]
\[sin\: x = \frac{adjacent}{hypotenuse}\]
\[sin\: x = \frac{opposite}{adjacent}\]
Which trigonometric ratio should be used to find the length of y?
\[tan\: 35 = \frac{opposite}{adjacent}\]
\[cos\: 35 = \frac{adjacent}{hypotenuse}\]
\[sin\: 35 = \frac{opposite}{hypotenuse}\]
Which calculation shows the correct working to find y?
6 × sin 35 = y
sin (35 × 6) = y
\[\frac{(sin\: 35)}{6} = y\]
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?
\[x = tan^{-1}\: \Big(\frac{9}{6}\Big)\]
\[x = tan\: \Big(\frac{9}{6}\Big)\]
\[x = tan^{-1}\: \Big(\frac{6}{9}\Big)\]
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?
a2 = b2 + c2 - 2bc cos A
\[\frac{1}{2} \: ab \: Sin \: C\]
\[\frac{a}{sin\:A} = \frac{b}{sin\:B} = \frac{c}{sin\:C}\]