Triangle by Angle
Triangle by Side
Quadrilaterals
100

All of my angles are less than 90 degrees

acute triangle

100
I have two congruent sides
isosceles triangle
100

I have 2 pairs of congruent sides and 2 pairs of parallel sides

parallelogram

200
I have one angle that is 110 degrees
obtuse triangle
200
I have all congruent sides.
equilateral triangle
200

I have 2 pairs of congruent sides and 4 right angles

rectangle

300
The angles measure as follows: 82 degrees, 61 degrees, and 37 degrees. What kind of triangle am I?
acute triangle
300
I have no congruent sides.
scalene triangle
300

I have 4 congruent sides and 2 pairs of parallel sides

rhombus or square

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