Question

A right rectangular prism is shown.

What is the length of DF¯¯¯¯¯ to the nearest tenth of a centimeter?

Drag and drop the answer into the box.

Answer 1

10.6

Explanation:

Answer 2

So what you are looking for is the hypotenuse of the triangle DCF.

We know DC is 3cm, so we need CF.

BC and CF and CF create a right triangle.

Using Pythagorean Theorem, CF is about 10.2

Now using Pythagorean Theorem again, 3^2 +10.2^2=113

The sqaureroot of that is 10.6. So 10.6 is your answer