Pythagoras 1
Pythagoras 2
Either
Trigonometry 1
Trigonometry 2
100
How do you determine which side of a right-angled triangle is the Hypotenuse?
The longest Side
The side opposite the right angle
100
When using Pythagoras Theorem, the shorter sides are labeled with what letters?
a or b
100
When using Trigonometry, the side length across from the angle is called?
Opposite
100
When using Trigonometry, the Hypotenuse is labeled with what letter?
c
100
When using Trigonometry, the side length across from the 90 degree angle is labeled with what letter?
c
200
Rearrange Pythagoras Theorem (a^2=b^2+c^2) , to make c the subject
c=sqrt(b^2+c^2)
200
When using Pythagoras Theorem, what is the formula to calculate side a?
a=sqrt(c^2-b^2
200
When using Pythagoras Theorem, what is the formula to calculate side b?
b=sqrt(c^2-a^2
200
sin (A)=
a / c
200
cos(A)=
b/c
300
Calculate the length of the hypotenuse:
26
300
Calculate the length of the Hypotenuse (to 2 dp):
7.62
300
Find: cos(16) (to 2 decimal places)
0.96
300
Find: tan(60) (to 2 decimal places)
1.73
300
Find: cos(59) (to 2 decimal places)
0.52
400
Calculate x (to 2 dp):
23.24
400
Calculate x (to 2 dp):
19.24
400
When using Trigonometry, what trigonometric ratio is used to calculate the hypotenuse side when given the adjacent?
H=A/cos(x)
400
When using Trigonometry, what trigonometric ratio is used to calculate the opposite side when given the adjacent?
O=A*tan(x)
400
When using Trigonometry, what trigonometric ratio is used to calculate the Hypotenuse when given the opposite side?
c=a /(sin(A)
500
What is the length of bd?
12
500
Abbie rides her bicycle 21 km west and then 18 km north. How far is she from her starting point? (to 2 dp)
27.66 km
500
Using Trigonometry, calculate the Hypotenuse when the Adjacent side = 19 and the angle = 78?
c = 91.38
500
Using Trigonometry, calculate the Adjacent when the Opposite side = 13 and the angle = 6?
A = 123.69
500
Using Trigonometry, calculate the Hypotenuse side when the Opposite = 8 and the angle = 56?
H = 9.65