Angles and Triangles Review

Triangles

100

I have one 90 degree angle.

A right triangle

200

I have 3 sides that are all the same length

equilateral triangle

300

I am a triangle with 1 angle greater than 90 degrees and 2 angles less than 90 degrees

an obtuse triangle

400

Describe an Isosceles triangle

A triangle with TWO sides that are the same LENGTH and ONE side that is a DIFFERENT LENGTH

500

is it possible to have a triangle with 2 right angles?

no

Angles

100

I am any angle that is less than 90 degrees.

an acute angle

200

I am an angle that is greater than 90 degrees

an obtuse angle

300

I am an angle that measures exactly 90 degrees

a right angle

400

I am a straight angle, what is my measurement in degrees?

180 degrees

500

What 2 types of angles do you find in the letter A?

Acute and obtuse angles

Random

100

Tool used to measure angles

protractor

200

Angles whose sum is 90 degrees

complimentary

300

If two angles are ___, they are automatically congruent.

vertical

400

Angles whose sum is 180 degrees

supplementary

500

the sum of the angles of a triangle is equal to ___ degrees

180

More Triangles

100

I am a triangle with 2 sides that are the same length

isosceles triangle

200

All of my angles are less than 90 degrees

acute triangle

300

I am a triangle with 3 sides that are all different lengths

scalene triangle

400

angles that are next to each other and share a common side are ____ angles

adjacent

500

true or false--a triangle can have more than one obtuse angle

false

Random

100

How many degrees do the angles in a triangle add up to?

180 degrees

200

Describe a scalene triangle

ALL sides are DIFFERENT LENGTHS

300

This question is about a triangle: If angle A is 40 degrees and angle B is 60 degrees, what is the measurement of angle C?

40 + 60 = 100 180 - 100 = 80 degrees

400

Two triangles that are exactly the same size and same shape are called...

congruent

500

Brandon draws a triangle that has one 160 angle. What is the measurement of each of the other two angles in the triangle?

180 - 160 = 20 20 / 2 = 10 Each angle is 10 degrees