Question

Dean made a triangular wall shelf.

The sides of the triangle measure
14 inches, 8 inches and 8 inches.
Is the shelf a right triangle?
Explain.

Answer 1

The shelf is not a right triangle

Explanation:

Given

`Sides = 14, 8, 8`

Required

Determine if it is a right triangle

To do this, we make use of Pythagoras theorem which implies that; the square of the longest side = the sum of the square of the two other sides.

So, we have:

`14^2 = 8^2 + 8^2`

Evaluate all squares

`196 = 64 + 64`

`196 = 128`

The above is not true because:

`196 \\e 128`

Hence, the shelf is not a right triangle