Classifying by Sides
Triangle Art
Classifying by Angles
Miscellaneous
Triangles/Angles
100
I have 3 equal sides.
What is an equilateral triangle?
100

Draw an acute triangle.

What is a triangle with 3 acute angles. (All less than 90 degrees.)

100
A triangle with all angles < 90 degrees.
What is an acute triangle?
100

This is the measurement of every angle in an equiangular triangle.

What is 60 degrees?

100

What could be a possible 3rd side length if two of the side lengths are 2 & 4?

What is 3,4, or 5?

200
A triangle with at least 2 equal sides.
What is an isosceles triangle?
200

Draw an obtuse triangle.

What is a triangle with one obtuse angle and two acute angles.

200
A triangle with one angle > 90 degrees.
What is an obtuse triangle?
200

Josh drew an acute isosceles triangle. He had an angle that measured 90 degrees and 2 sides that were equal. What was wrong with his drawing?

What is he had a right angle in a triangle that needs 3 angles that are each < 90 degrees.

200

What do the angles have to add up to in order to be a triangle?

What is 180 degrees?

300
A triangle with no equal sides.
What is a scalene triangle?
300
Draw an equiangular triangle.
What is "Show teacher triangle with all angles equal."
300
A triangle with one angle measuring exactly 90 degrees.
What is a right triangle?
300

This triangle has 1 angle measuring 98 degrees, and the sides of the triangle measure 3,5, & 7. What kind of triangle is it?

What is a obtuse scalene triangle?

300

What are complementary angles?

What is two angles that have a sum of 90 degrees?

400
A triangle is equilateral, so this is also true about that triangle: A) It is a right triangle. B) It is a scalene triangle. C) The triangle is equiangular. D) The triangle is obtuse.
What is the triangle is equiangular?
400

Draw an right isosceles triangle.

What is a triangle with one right angle and at least two sides that are the same length.

400
A triangle with the following angle measurements: 97 degrees, 40 degrees, and 43 degrees.
What is an obtuse triangle?
400

The angle measurements of a triangle are 60, 80, 90. Is this a triangle? Explain your answer

What is it is not a triangle because the 3 angles must add up to be 180 degrees.

400

Two angles are opposite each other, congruent and are created by intersecting lines.

What is vertical angles?

500
The sides of an isosceles triangle could measure the following: A) 6", 7", 8" B) 9", 9", 9" C) 6", 9", 11" D) 6", 6.5", 7"
What is B, 9", 9", 9"?
500

Draw a triangle that is obtuse and scalene.

What is a triangle with an obtuse angle and no equal sides.

500
This triangle has one angle measuring 88 degrees.
What is an acute triangle?
500
An equilateral triangle can be an isosceles triangle. True or false, and why?
What is true, because an equilateral triangle has 3 equal sides. An isosceles triangle has ATLEAST 2 equal sides, which means it could also have 3 equal sides.
500
Name 3 classifications of a triangle with sides measures 3 cm, 3cm, 3cm.

What is equilateral, equiangular, isosceles, & acute?

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