Question by Summer Clouds - Discuss with MathYouLike

Summer Clouds moderators

15/11/2017 at 08:36

A right triangle is formed by the sides of three squares, as shown. The side length of the square labeled K is 7 cm, and the side length of the square labeled L is 2 cm. What is the area of the square labeled J?
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List of answers

Bảo Bình 15/11/2017 at 12:04

Apply theorem into the triangle between three square labeled L,J and K ,we have the area of the square labeled J is:

7²-2²=49-4=45 cm²

So the area of the square labeled J is 45 cm²
Nguyễn Hưng Phát 16/11/2017 at 13:08

Apply theorem into the triangle between three square labeled L,J and K ,we have the area of the square labeled J is:

7²-2²=49-4=45 cm²

So the area of the square labeled J is 45 cm²
Phan Thanh Tinh Coordinator 15/11/2017 at 11:53

Applying the Pythagorean theorem, we deduce that the square of the edge (or the area) of the square labeled J is :

\(7^2-2^2=45\) (cm²)

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