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similar triangles
classifying triangles
find the missing angle
is it a triangle?
vocabulary
100
see example A. Find x.
What is 5?
100
see triangle 1.
What is right isosceles?
100
see triangle 2
What is 60º?
100
1, 2, 5
What is no.
100
a triangle with no equal sides.
What is scalene?
200
see example B. find x.
What is 3?
200
see triangle 2.
What is equilateral acute?
200
see triangle 5.
What is 60º?
200
2, 7, 8
What is yes?
200
a triangle with two equal sides
What is isosceles?
300
see example B. find y.
What is 2?
300
see triangle 3.
What is obtuse scalene?
300
see triangle 4.
What is 70º?
300
3, 4, 5
What is yes?
300
a triangle with one right angle and two acute angles
What is a right triangle?
400
see example C. find x.
What is 10?
400
see triangle 4.
What is acute isosceles?
400
see triangle 3.
What is 135º?
400
1, 2, 3
What is no?
400
a triangle with 3 equal sides.
What is an equilateral triangle?
500
see example D. find the perimeter of the shaded triangle.
What is 36?
500
see triangle 5.
What is right scalene?
500
see triangle 1.
What is 45º?
500
right equilateral
What is no?
500
equal, but in geometry
What is congruent?