Understanding Right Triangles and Area Calculation

Understanding Right Triangles and Area Calculation

Assessment

Interactive Video

Mathematics

5th - 8th Grade

Hard

Created by

Emma Peterson

FREE Resource

This video tutorial explains how to find the area of a triangle by identifying it as a right triangle. The instructor demonstrates how to prove the right angle by calculating the slopes of the triangle's sides and showing they are opposite reciprocals. Once the right angle is confirmed, the base and height are identified, and the area is calculated using the formula 1/2 base times height, resulting in an area of 25 square units.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the given side lengths of the triangle discussed in the video?

3 and 4

7 and 9

5 and 10

6 and 8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property of the triangle helps in simplifying the area calculation?

It is an isosceles triangle

It is a right triangle

It is an equilateral triangle

It is a scalene triangle

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you prove that the triangle is a right triangle?

By finding the slopes of two lines and showing they are opposite reciprocals

By checking if the sides are equal

By calculating the perimeter

By measuring the angles directly

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the slope of the first line mentioned in the video?

3/4

4/3

8/6

6/8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the calculated area of the triangle?

35 square units

30 square units

25 square units

20 square units