Vocabulary
What is an acute triangle?
A triangle that's angles are all less than 90 degrees
Triangles can be classified by their angles and sides.
True
Triangle with one right angle.
Right Triangle
If all three angles in a triangle are "c", and are equal, what is the value of "c"?
c=60 degrees
What does SSS stand for?
Side Side Side
The sum of the measures of a triangle is 360 degrees.
False, 180 degrees
Triangle with one obtuse angle.
Obtuse Triangle
In a triangle, if angle 1= 85 degrees, angle 2=35 degrees, and angle 3= x, what is the value of x?
x= 60 degrees
What is reflection?
Flipping a figure over a line
An equilateral triangle is also an isosceles triangle.
True
Triangle with all acute angles.
Acute Triangle
Define equiangular triangle
A triangle in which all three angles are congruent.
The acute angles of a right triangle are supplementary.
False, complementary
A triangle with no congruent sides.
Scalene Triangle
Define preimage.
Each point on the original figure
Reflections are sometimes called turns.
False
A triangle with at least two congruent sides.
Isosceles Triangle