Calculating Triangle Area Concepts

Calculating Triangle Area Concepts

Assessment

Interactive Video

Mathematics

6th - 7th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

This video tutorial explains how to calculate the area of a triangle using three examples. The formula for the area is half the base times the height. The first example uses a base of 5 and a height of 10, resulting in an area of 25 cm squared. The second example emphasizes using the perpendicular height, with a base of 12 and height of 6, resulting in 36 cm squared. The third example also highlights the importance of the perpendicular height, with a base of 8 and height of 5, resulting in 20 cm squared.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for calculating the area of a triangle?

base * height

base + height

1/2 * base * height

1/2 * (base + height)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the first example, what is the area of a triangle with a base of 5 cm and a height of 10 cm?

30 cm²

20 cm²

25 cm²

50 cm²

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the base and height in the first example?

20

25

50

30

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the first example, what is the half of the product of base and height?

25

50

30

20

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to use the perpendicular height in triangle area calculations?

It is easier to measure.

It is the only height that works in the formula.

It gives a larger area.

It ensures the calculation is accurate.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the second example, which measurement is irrelevant for calculating the area?

None of the above

Slant height

Perpendicular height

Base

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the area of a triangle with a base of 12 cm and a perpendicular height of 6 cm?

24 cm²

48 cm²

36 cm²

72 cm²

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