Triangle Perimeter and Side Relationships

Triangle Perimeter and Side Relationships

Assessment

Interactive Video

Mathematics

6th - 7th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve a word problem involving the perimeter of a triangle. The problem states that the perimeter is 71 cm, with the first side being 3 cm shorter than the second, and the third side twice as long as the first. The tutorial guides viewers through defining variables, setting up equations, and solving them to find the lengths of the sides. The longest side is determined to be 34 cm.

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total perimeter of the triangle given in the problem?

20 cm

68 cm

71 cm

34 cm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the first side related to the second side?

It is twice as long as the second side.

It is three centimeters shorter than the second side.

It is equal to the second side.

It is three centimeters longer than the second side.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between the third side and the first side?

The third side is half the length of the first side.

The third side is three times the length of the first side.

The third side is twice the length of the first side.

The third side is equal to the first side.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which variable is used to represent the first side of the triangle?

s

t

x

f

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What equation represents the perimeter of the triangle?

s + t = f

f + t = s

f + s = t

f + s + t = 71

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the second side be expressed in terms of the first side?

s = 2f

s = f + 3

s = f

s = f - 3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of the first side after solving the equation?

17 cm

34 cm

20 cm

71 cm

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