World of Triangles

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2

Question 1

If a triangle has three unequal sides it is a triangle.

A) Scalene

B) Obtuse

C) Isosceles

Answer:

A) Scalene

Slide 16

Question 2

A triangle which has three equal angles is a triangle.

A) Acute

B) Equilateral

C) Equiangular

Answer:

C) Equiangular

Slide 17

Question 3

A triangle with (at least) two equal sides is a triangle.

A) Scalene

B) Isosceles

C) Congruent

Answer:

B) Isosceles

Slide 18

Question 4

Two triangles that are equal are called triangles

A) Acute

B) Obtuse

C) Congruent

Answer:

C) Congruent

Slide 19

Question 5

A triangle with all three sides of equal length is a triangle.

A) Equilateral

B) Right

C) Equiangular

Answer:

A) Equilateral

Slide 20

Question 6

A triangle with an angle of 90° is a triangle.

A) Acute

B) Right

C) Congruent

Answer:

B) Right

Slide 21

Question 7

A triangle in which all three angles are less than 90° is a triangle.

A) Right

B) Acute

C) Scalene

Answer:

B) Acute

Slide 22

Question 8

A triangle in which one of the angles is greater than 90° is a triangle.

A) Obtuse

B) Isosceles

C) Acute

Answer:

A) Obtuse

Slide 23

Question 9

What is the Hypotenuse of a right triangle?

A) The smallest angle.

B) The side opposite the right angle.

C) The right angle.

Answer:

B) The side opposite the right angle.

Slide 24

Question 10

The Pythagorean Theorem states …

A) pr2

B) (a+b)2/2=c

C) a2+b2=c2

Answer:

C) a2+b2=c2

Slide 25

Question 11

Use the Pythagorean Theorem to solve the following:

a = 5

b = 12

c = ?

Answer:

c = 13