Angles
Sides
Triangle Sum Theorem
SAS and SSS
100
An obtuse triangle has all angles less than 90°.
False
100
A triangle with all equal sides is called what?
Equilateral triangle
100
All 3 angle measures in a triangle =
180
100
What does SSS stand for?
Side-Side-Side
200
A triangle can have two right angles. (true / false)
false
200
A triangle has sides 5, 5, and 8. What type of triangle is it
Isosceles, because it has two equal sides
200
What is the measure of the missing angle?
_________ degrees, 32 degrees, 58 degrees
90 degrees
200
What does SAS stand for?
Side-Angle-Side
300
Can you form this triangle? Why or why not?
A triangle with angles:
40 degrees, 50 degrees, 90 degrees
Yes, because 40 + 50 + 90 = 180 degrees.
300
A triangle with no equal sides is called what?
Scalene triangle
300
What is the measure of angle t?
55 degrees
300
What must be true for SSS congruence?
All three sides of both triangles must be equal
400
A triangle with angles 30°, 60°, and 67° is an acute triangle.
True
400
A triangle with two equal sides is called what?
Isosceles triangle
400
A triangle has angles 50° and 60°. What is the third angle?
70 degrees
400
In SAS, what angle must be used?
the angle between the 2 side lengths
500
A triangle with angles 30°, 60°, and 90° is a right triangle.
True
500
A triangle has sides 6, 7, and 9. What type of triangle is it and why?
Scalene because all sides are different
500
What is the value of b?
b = 45
500
Two triangles have sides 6, 8, 10 and 6, 8, 10. What conclusion can you make?
They are congruent by SSS