Triangles
Angles
Protractor
More Triangles
Random

100

I have one 90 degree angle.
A right triangle

100

I am any angle that is less than 90 degrees.
an acute angle

100

Draw a straight angle
<-------------------------o------------------------>

100

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

100

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

200

I have 3 sides that are all the same length
equilateral triangle

200

I am an angle that is greater than 90 degrees
an obtuse angle

200

Draw a right angle
| | o-----

200

All of my angles are less than 90 degrees
acute triangle

200

Describe a scalene triangle
ALL sides are DIFFERENT LENGTHS

300

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

300

I am an angle that measures exactly 90 degrees
a right angle

300

Draw a 45 degree angle
(See student work)

300

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

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

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

400

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

400

Draw a 160 degree angle
(See student work)

400

Draw a right triangle
(See student work)

400

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

500

is it possible to have a triangle with 2 right angles?
no

500

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

500

Draw a 162 degree angle
(See student work)

500

Draw an isosceles triangle
(See student work)

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