Angle Properties
The sum of the three interior angles of a triangle.
180 degrees.
The name of the method used in the presentation to conceptually teach pythagoras' theorem.
square method
Name given to the ratio of adjacent over hypotenuse
Cosine
formula for sine rule
a/sinA=b/sinB=c/SinC
The position of a point relative to another.
Bearing
Two or more angles sum to give 90 degrees.
Complementary angles
If the squares of two sides of a triangle are 25 and 64, what is the square of the hypotenuse?
89
Acronym for trig ratios.
SOHCAH TOA
Should be used when given two sides and the angle between them.
Cosine rule
A bearing is represented using this amount of digits.
3
These angles are formed when a transversal cuts two parallel lines. Their sum is 180 degrees.
Co-interior angles
Pythagoras' theorem states that....
The square of the hypotenuse is equal to the sum of the squares of the other two sides.
Another name for Tangent inverse.
Arctangent
Should be used when given two angles and one side.
Sine rule
What bearing would I be on if I am walking due East?
090 degrees.
One side of a triangle is extended to form an exterior angle that measures 115 degrees. If one of the opposite interior angles is 78 degrees, what is the measure of the other?
37 degrees
State the 3rd pythagorean tripple
(6, 8, 10)
If Cos inverse of theta is 90 degrees, what is theta?
Zero
Cos P = -.28. What is P (1 d.p.)?
106.3 degrees
The name of the cardinal point 202.5 degrees from north.
South South West
If one side of a triangle is longer than another side then.....
The angle opposite the longer side is larger than the angle opposite the shorter side.
A triangle's hypotenuse measures 25 cm and another side measures 7 cm. What is the measure of the third side?
24 cm
If Sin 38 = 12/x
What is x?
19.49
a/Sin 40 = 15/Sin 54
What is a (2 d.p.)?
11.92
The bearing of a point G from H is 75 degrees. What is the bearing of H from G?
255 degrees.