Pythagoras 2
Either
Trigonometry 2
100
What is the longest side of a right angled triangle called?
the hypotenuse
100
When using Trigonometry, the side length across from the angle is called?
Opposite
100
When using Trigonometry, what do the letters O, A and H represent? (like in SOHCAHTOA)
Opposite, Adjacent and Hypotenuse
200
When using Pythagoras Theorem, what operation is needed when finding a shorter side?
subtraction/minus
200
What is the side next to the angle called?
adjacent
200
cos(theta)=
A/H
300
Calculate the length of the Hypotenuse (to 2 dp):
7.62
300
With what sort of shapes can trigonometry and Pythagoras' theorem be used?
right-angled triangles.
300
Calculate the angle given cos(theta) = 0.02.
88.85o
400
Calculate x (to 2 dp):
19.42
400
When using Trigonometry, what formula is used to calculate the hypotenuse when given the adjacent?
cos(theta)=A/H
400
Using trigonometry, calculate the length of the adjacent side when the opposite side length is 13 and the angle is 6 degrees. (Draw a diagram)
A = 123.69
500
Abbie rides her bicycle 21 km west and then 18 km north. How far is she from her starting point? (to 2 dp)
* hint - draw a right angled triangle to help *
27.66 km
500
Using Trigonometry, calculate the Hypotenuse when the Adjacent side = 19 and the angle = 78o.
(Draw a diagram)
c = 91.38
500
If a tree is 6 metres tall, how long would its shadow be when the sun is 15o above the horizon? (Draw a diagram)
22.39 m