Types of Angles
This angle measures less than 90°.
What is an ACUTE angle?
A triangle with all three sides different.
What is a SCALENE TRIANGLE?
This tool is used to measure and draw angles.
What is a protractor?
Complementary angles have a sum of this measure.
What is 90°?
This symbol is used for a right angle.
What is a square?
This type of triangle can have more than one name.
What is an EQUILATERAL TRIANGLE/EQUIANGULAR? (Can also be isosceles.)
The measure of the angle that is the supplement to 2°.
What is 178°?
Supplementary angles have a sum of this measure.
What is 180°?
This symbol is used for an angle.
What is ∠ ?
True or False: A triangle with sides 5in, 7in, 3in can be constructed.
TRUE
A triangle with angles 25° and 25° and 130° will be what type of triangle?
What is OBTUSE and/or ISOSCELES?
The complement and supplement of 72° are these measures.
What are 18° and 108°?
This symbol is used for congruent side lengths.
What are tick marks?
The possible side length if the two shorter sides are 2in and 4in.
What are sides less than 6in, but more than 2in?
The measure of the angle that is the supplement to 105°.
What is 75°?
The complement and supplement of 110° are these measures.
What is "Not possible" and 70°?
When finding the area of a triangle, the units are measured this way.
What is units squared?
A triangle is labeled with side lengths of "a", "a", and "b". This is the perimeter.
What is 2a + b units?
A triangle has an angle measuring 15° and another measuring 85°, this is the third angle measure.
What is 80°?
The complement of this angle is 52° and the supplement is 142°.
What is 38°?
This symbol is an example of a symbol used to represent a missing angle.
What is a x (or any other letter)?