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 'Triangle Area - Intro' Learn online: app.mobius.academy/math/units/triangle_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 32km to the power of 2
b A LaTex expression showing 7km to the power of 2
c A LaTex expression showing 18km to the power of 2
d A LaTex expression showing 28km to the power of 2
e A LaTex expression showing 14km 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 24ft to the power of 2
b A LaTex expression showing 18ft to the power of 2
c A LaTex expression showing 7ft 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 10km to the power of 2
b A LaTex expression showing 35km to the power of 2
c A LaTex expression showing 3km to the power of 2
d A LaTex expression showing 6km 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 24ft to the power of 2
b A LaTex expression showing 1.3ft to the power of 2
c A LaTex expression showing 56ft to the power of 2
d A LaTex expression showing 12ft to the power of 2
e A LaTex expression showing 20ft 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 90m to the power of 2
b A LaTex expression showing 128m to the power of 2
c A LaTex expression showing 100m to the power of 2
d A LaTex expression showing 32m to the power of 2
e A LaTex expression showing 144m 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 18ft to the power of 2
b A LaTex expression showing 2ft to the power of 2
c A LaTex expression showing 4.5ft to the power of 2
d A LaTex expression showing 9ft to the power of 2
e A LaTex expression showing 12ft to the power of 2
7
Find the area of the triangle by halving the area of the rectangle around it
An svg image showing a math problem
a A LaTex expression showing 70km to the power of 2
b A LaTex expression showing 35km to the power of 2
c A LaTex expression showing 17.5km to the power of 2
d A LaTex expression showing 2.8km to the power of 2