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Area of a Right Triangle - Concept Intro - From Rectangle (Level 2)

This math topic focuses on teaching how to calculate the area of a right triangle by utilizing the area of a surrounding rectangle. The method involves halving the rectangle's area to find the area of the right triangle. Each problem presents different scenarios with visual aids, and students are given multiple choices for answers. This exercise aims to solidify the student's understanding of area calculation in basic geometry, specifically through visual spatial reasoning and practical application.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Right Triangle - Concept Intro - From Rectangle

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Find the area of the triangle by halving the area of the rectangle around it

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Area of a Right Triangle - Concept Intro - From Rectangle Worksheet

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Math worksheet on 'Area of a Right Triangle - Concept Intro - From Rectangle (Level 2)'. Part of a broader unit on 'Area Intro' Learn online: app.mobius.academy/math/units/area_intro/
1
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 15ft to the power of 2
b A LaTex expression showing 7.5ft to the power of 2
c A LaTex expression showing 3.3ft to the power of 2
d A LaTex expression showing 16ft to the power of 2
2
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 20m to the power of 2
b A LaTex expression showing 12m to the power of 2
c A LaTex expression showing 54m to the power of 2
d A LaTex expression showing 48m to the power of 2
3
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 18km to the power of 2
b A LaTex expression showing 14km to the power of 2
c A LaTex expression showing 28km to the power of 2
d A LaTex expression showing 7km to the power of 2
e A LaTex expression showing 32km to the power of 2
4
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 42ft to the power of 2
b A LaTex expression showing 100ft to the power of 2
c A LaTex expression showing 26ft to the power of 2
d A LaTex expression showing 2.3ft to the power of 2
e A LaTex expression showing 21ft to the power of 2
5
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 16m to the power of 2
b A LaTex expression showing 24m to the power of 2
c A LaTex expression showing 64m to the power of 2
d A LaTex expression showing 72m to the power of 2
6
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 80cm to the power of 2
b A LaTex expression showing 26cm to the power of 2
c A LaTex expression showing 20cm to the power of 2
d A LaTex expression showing 66cm to the power of 2
7
An svg image showing a math problem
Find the area of the triangle by halving the area of the rectangle around it
a A LaTex expression showing 2.7m to the power of 2
b A LaTex expression showing 6m to the power of 2
c A LaTex expression showing 12m to the power of 2
d A LaTex expression showing 14m to the power of 2