Rhombus Diagonal Length: Verify if DC = 8 cm in a 7 cm Side Rhombus

Question

A rhombus has a side length measuring 7 cm.

Is DC equal to 8 cm?

00:07 Is the side D C equal to eight?

00:10 Remember, in a rhombus, all sides are the same length.

00:16 Let's substitute the side length based on the given information.

00:23 We'll find that D C actually equals seven, not eight.

00:32 And that's the solution to the question!

Let's recall the properties of a rhombus. In a rhombus, all sides are equal to each other, therefore DC cannot be equal to 8 cm.

Additionally, in a rhombus, there are 2 pairs of parallel and equal sides. Since the side parallel to AB is CD, it must be equal to 7 cm.