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Distance Formula and Triangle Perimeter

Distance Formula and Triangle Perimeter

Assessment

Interactive Video

•

Mathematics

•

9th - 10th Grade

•

Practice Problem

•

Hard

Created by

Thomas White

FREE Resource

Drew Moyer explains how to find the perimeter of a triangle using the distance formula. The process involves calculating the lengths of each side of the triangle by applying the distance formula three times. Each side's length is determined by plugging in the coordinates of the triangle's vertices into the formula. After calculating the lengths of sides A, B, and C, the perimeter is found by summing these lengths. The video provides a detailed walkthrough of each calculation step, ensuring a clear understanding of the method.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal of using the distance formula in this tutorial?

To find the area of a shape

To find the perimeter of a shape

To find the volume of a shape

To find the centroid of a shape

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many times do we need to apply the distance formula for a triangle?

Once

Twice

Three times

Four times

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general form of the distance formula?

D = sqrt((x2 - x1)^2 + (y2 - y1)^2)

D = (x2 - x1)^2 + (y2 - y1)^2

D = x2 - x1 + y2 - y1

D = (x2 + x1)^2 + (y2 + y1)^2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the coordinates used to calculate side A?

(-2, -1) and (2, 3)

(2, 3) and (3, -4)

(-2, -1) and (3, -4)

(2, -1) and (-2, 3)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified length of side A?

√32

4√2

16

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which mathematical operation is used to simplify the square root of 32?

Addition

Subtraction

Multiplication

Factorization

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which coordinates are used to calculate side B?

(-2, -1) and (2, 3)

(2, -1) and (-2, 3)

(2, 3) and (3, -4)

(-2, -1) and (3, -4)

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