What is the name for the side y in this triangle?
Opposite
Adjacent
Hypotenuse
Which trigonometric ratio should be used to find the length of the adjacent side?
Sin
Cos
Tan
Which trigonometric ratio calculates sin x?
\[sin\: x = \frac{opposite}{hypotenuse}\]
\[sin\: x = \frac{adjacent}{hypotenuse}\]
\[sin\: x = \frac{opposite}{adjacent}\]
Which trigonometric ratio should be used to find length y?
\[tan\: x = \frac{opposite}{adjacent}\]
\[cos\: x = \frac{adjacent}{hypotenuse}\]
Which calculation shows the correct working to find y?
6 × sin 35 = opposite
sin (35 × 6) = opposite
\[\frac{(sin\: 35)}{6} = opposite\]
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 trigonometric formula for the area of any triangle?
a2 = b2 + c2 - 2bc cos A
\[\frac{1}{2} \: ab \: Sin \: C\]
\[\frac{a}{sin\:A} = \frac{b}{sin\:B} = \frac{c}{sin\:C}\]