Triangle Basics
Pythagorean Theorem
Special Right Triangles
45-45-90 Triangles
30-60-90 Triangles
100
What is an equilateral triangle?
A triangle with three sides of equal measure
100
What is the only type of triangle that the Pythagorean theorem applies to?
a right triangle
100
Which special right triangle is formed by drawing the diagonal of a square?
a 45-45-90 triangle
100
Find the length of the side AB of the triangle below.
What is 3?
100
Find the missing side length.
What is √3?
200
What is the sum of the angle measures of a triangle
180 degrees
200
Where is the hypotenuse on a right triangle?
Across from the right angle
200
Which special right triangle is formed by drawing an altitude for an equilateral equiangular triangle?
a 30-60-90 triangle
200
Find the hypotenuse length of the triangle below.
What is 3√2?
200
Find the length of the side IR.
What is 7?
300
What is the sum of the of the two non-right angles in a right triangle?
90 degrees
300
In the Pythagorean theorem, what letter is used to represent the hypotenuse?
the letter C
300
What is the classification for the 45-45-90 triangle? (based on sides and angles)
an isosceles right triangle
300
Find the length of the diagonal.
What is 8√2?
300
Find the hypotenuse.
What is 12?
400
What do you call a triangle with two equal sides?
isosceles triangle
400
What operation is used to find C when you know C²?
the square root
400
Which angle is opposite the short side of a 30-60-90 triangle?
the 30 degree angle
400
Find the hypotenuse of this triangle.
What is 18?
400
Find DE.
What is 6√3?
500
What is a possible length for the third side of a triangle that has two other side lengths of 2 and 7?
Answers must be greater that 5 and less than 9.
500
What completes the Pythagorean triple if a = 3 and b = 4?
c = 5
500
In which special right triangle is the hypotenuse 2 times as long as the short side?
a 30-60-90 triangle
500
If the length of the hypotenuse of a 45-45-90 triangle is 12, what is the length of a leg?
What is 6√2?
500
Find x.
What is 4√3?