Area of a Right Triangle - Concept Intro - From Rectangle

Level 1

This math topic involves practicing finding the area of right triangles. The method taught requires halving the area of a surrounding rectangle to derive the area of the right triangle. The problems are designed at an introductory level and are a part of a broader introductory unit on area. Each question presents a different scenario with measurements in various units such as meters, inches, and kilometers, providing students diverse practice in applying the concept.

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

4km4km

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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 1)'. 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 8km to the power of 2
b A LaTex expression showing 2km to the power of 2
c A LaTex expression showing 4km 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 15m to the power of 2
b A LaTex expression showing 16m to the power of 2
c A LaTex expression showing 4m to the power of 2
d A LaTex expression showing 12m 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 48ft to the power of 2
b A LaTex expression showing 32ft to the power of 2
c A LaTex expression showing 16ft to the power of 2
d A LaTex expression showing 8ft 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 35ft to the power of 2
b A LaTex expression showing 40ft to the power of 2
c A LaTex expression showing 32ft to the power of 2
d A LaTex expression showing 8ft 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 8cm to the power of 2
b A LaTex expression showing 4cm to the power of 2
c A LaTex expression showing 21cm to the power of 2
d A LaTex expression showing 42cm 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 36km to the power of 2
b A LaTex expression showing 8km to the power of 2
c A LaTex expression showing 32km to the power of 2
d A LaTex expression showing 30km to the power of 2
e A LaTex expression showing 16km 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 12ft to the power of 2
b A LaTex expression showing 4ft to the power of 2
c A LaTex expression showing 16ft to the power of 2
d A LaTex expression showing 35ft to the power of 2
e A LaTex expression showing 30ft to the power of 2