Big Beard
Greek Man
Either
Trigonometry
Trigonometry
100
When using Pythagoras Theorem, the Hypotenuse is labeled with what letter?
C
100
When using Pythagoras Theorem, the shorter sides are labeled with what letters?
a or b
100
When using Trigonometry, the side across from the angle is called?
Opposite
100
When using Trigonometry, the side "touching" the known angle is called the what?
adjacent
100
When using Trigonometry, the side length across from the 90 degree angle is labeled with what letter?
h (for hypotenuse)
200
When using Pythagoras Theorem, what is the formula to calculate side c?
c^2=a^2+b^2
200
When using Pythagoras Theorem, what is the formula to calculate side a?
a^2=c^2-b^2
200
When using Pythagoras Theorem, what is the formula to calculate side b?
b^2=c^2-a^2
200
sin (theta)=
O /H
200
cos(theta)=
A /H
300
Calculate the length of the hypotenuse:
26
300
Calculate the length of the Hypotenuse (to 2 dp):
7.62
300
Find side length AB
AB = 8.40
300
35.10 degrees
300
How long is y?
y = 8.67
400
Calculate x (to 2 dp):
23.24
400
Calculate x (to 2 dp):
19.24
400
Which line is the working out error on?
cos(theta)=A/H
cos(45)=x/4.24
x=4.24/cos(45)
x=3
Line 3
Should be
x=4.24*cos(45)
400
What angle has a Cos ratio of
sqrt(3)/2
30 degrees
400
How long is the opposite side of a right angled triangle if the reference angle is 50 degrees and the hypotenuse is 14cm? (2d.p)
10.72cm
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
Ayesha walks 13m north, turns 90 degrees east and then walks 3m forward.
How far is Ayesha from where she started?
13.34m
500
0.69m^2
500
Using Trigonometry, calculate the hypotenuse side when the adjacent=18 and the angle=47
h=26.39