Angles
Triangles by Angles
Triangles by Sides
Area and Perimeter
It's all relative
100
How many types of triangles are there?
6
100
What are the sum of all angles in every triangle?
180
100
A triangle with no equal sides is classified as a __________ triangle.
Scalene
100
How do you find the perimeter of a triangle?
Add all the sides together.
100
The angles in a triangle are called _____________ angles.
Interior
200
A right angle is exactly ____ degrees.
90o
200
What kind of triangle is shown below?
(Acute, right, obtuse, or straight)
Obtuse
200
A triangle with 2 equal sides is classified as a(n) __________ triangle.
Isosceles Triangle
200
What is the formula for finding the area of a triangle?
Area of a triangle=(1/2) x base x height
200
Angles outside of a triangle are called ____________ angles.
Exterior
300
A straight angle is __________ degrees.
180o
300
What is an acute triangle?
A triangle with 3 acute angles.
300
A triangle with 3 equal sides is classified as a(n) _____________ triangle.
Equilateral
300
What is the formula for finding the area of a triangle?
1/2 x base x height
300
True or False.
All exterior angles equal 180 degrees.
False
400
What is the definition of an acute angle?
An angle measuring less than 90 degrees.
400
A triangle has the following measurements: 95o, 75o, and 10o. Is this an acute, obtuse, or right triangle?
Obtuse triangle
400
A triangle with the following measurements would be described as what type of triangle? (Equilateral, Scalene, or Isosceles)
2 cm, 3 cm, 5 cm
Scalene
400
What is the area of a right triangle with a base of 4 cm and a height of 3 cm?
6 cm2
400
Which theorem will you use to find the missing angle?
Exterior Angle Theorem
500
What is the definition of an obtuse angle?
An angle measuring more than 90 degrees.
500
A triangle has 3 angles: 90 degrees, 30 degrees, and 75 degrees.
What kind of triangle is it?
Not possible. Angles = 195
500
A triangle with the following measurements would be described as what type of triangle? (Equilateral, Scalene, or Isosceles)
5 meters, 5 meters, 2 meters
Isosceles
500
What is the area of a rectangle with a length of 12 cm and a width of 7 cm?
84 cm2
500
What is the equation to solve for x?
x+25+x+17 = 3x+2
Or
3x+2 = x+25+x+17