Classifiying triangles by sides.

Question 1

What triangle has 3 congruent sides?

Answer 1

A triangle with 3 congruent sides is called an equilateral triangle

Question 2

What triangle has 2 congruent sides?

Answer 2

Isoceles triangle.

Question 3

What triangle has zero congruent sides?

Answer 3

Scalene triangle.

Question 4

Triangle angle sum theory.
(The sum of the measures of the angles in a triangle add up to:

Answer 4

180.

Question 5

Exterior angle sum theory. An exterior angle is formed by:

Answer 5

Extending any one side of the triangle

Question 6

An exterior is always equal to the sum of the:

Answer 6

2 non-adjacent interior angles
m <1= m<2+m<3

Question 7

Triangle

Answer 7

A closed figure with 3 straight sides.

Question 8

Triangles can be classfied by their

Answer 8

Angles and sides.

Question 9

Isoceles triangle diagram

Answer 9

vetex (top)
Leg (middle left) Second leg (middle right)
lower left side (base triangle) lower right side (base triangle

Question 10

Right triangle diagram

Answer 10

Leg (Left side of right triangle) Hypotenuse right side (slanted)
Bottom leg of right triangle.

Question 11

Base angles (On an isoceles triangle)

Answer 11

are congruent

Question 12

Legs for (isoceles triangles) are

Answer 12

Congruent

Question 13

The hypotenuse is always across from the

Answer 13

right angle

Question 14

There are two main types of problems in geometry: The congruent statement is

Answer 14

side=side

Question 15

Total (sum)=

Answer 15

side+side+side= perimeter.

Question 16

Triangle Inequalities Notes part 1: = symbol is

Answer 16

equal to.

Question 17

=x is

Answer 17

not equal to

Question 18

<
-<

Answer 18

less than
less than or equal to.

Question 19

> ->

Answer 19

greater than
greater than or equal to

Question 20

Longest side —->
Opposite largest angle

The longest side is opposite the

Answer 20

largest angle.

Question 21

Medium side —->
Oppostite (medium angle)
The medium side is opposite from the

Answer 21

medium angle.

Question 22

Shortest side —–>
Opposite (smallest angle)
The smallest side is opposite the

Answer 22

smallest angle.

Question 23

Triangle inequality Theorem
The sum of the lengths of any two sides of a triangle is

Answer 23

greater than the length of the third side.

Question 24

Isoceles triangle. In an isoceles triangle, two sides are

Answer 24

congruent.

Question 25

The two congruent sides of a triangle are called

Answer 25

legs.

Question 26

The non-congruent side is called

Answer 26

the base.

Question 27

The two angles at the base are called base angles

Answer 27

base angles

Question 28

Isoceles triangle theorem (sides–>angle)
If two sides of a triangle are congruent, then

Answer 28

the angles opposite those sides are congruent.