Triangle Facts
What is the longest side of a triangle called?
The hypotenuse
What is the Pythagorean theorem?
a squared plus b squared equals c squared
What is the formula for the area of a square or rectangle?
L X W
Name the 4 transformations we learned
Translation, Rotation, reflection, dilation
How many degrees are in a protractor
180 degrees
What are the sides of the triangle that are not the longest side?
The legs
What is the only type of triangle the Pythagorean theorem works for?
A right triangle
What is the formula for the area of a triangle?
B X H / 2
If a triangles base covers 3 square units, and a dilation of that triangle covers 9 square units. What is the scale factor?
3
180 degrees
The hypotenuse is always what to the right angle?
opposite
If a tringle has leg lengths of 9 m and 6 m, how long is the hypotenuse?
10.82 m
What is the formula for area of a circle?
3.14 x radius squared
If a triangles points are (0,0), (8,0) and (8,12) and then are changed to (0,0), (8,0) (8, -12). What is the transformation?
A reflection in the X-axis
Two angles that add up to 90° are...
complementary angles
Name the 4 triangle types
Equilateral, Scalene, Right, Isosceles
If a triangle has a leg of 10 and a hypotenuse of 12 what is the length of the other leg?
6.63 m
If a house diagram is made of a square that is 10 X 5 inches and a triangle with a height of 9 and base of 3 inches, what is the total area of the diagram?
63.5 inches
If a triangles points are (0,0), (8,0) and (8,12) and then are changed to (8,0), (16,0) (16, 12). What is the transformation?
a translation to the right.
Two angles that have a sum of 180 degrees are...
supplementary angles
Who invented the Pythagorean theorem and where?
Pythagoras in Greece
What is the area of a triangle with a hypotenuse of 12 and a leg of 10?
33.15
If a diagram of a hockey rink is made up of two semi circles, both with a radius of 6 inches, and a rectangle with that is 5 X 10 inches, what is the total area of the diagram?
263.1 inches
If a triangles points are (8, 0), (16, 0) and (16, 12) and the points become (4,0), (16, 0), and (16, 8). What was the transformation?
A 90 degree rotation
Angles that are directly opposite each other when two lines intersect are...
Opposite angles