Question

In the rectangle below, AC has a length of 28 units. What is the length of DE?

D
A
LD
O A. 56 units
O B. 21 units
O C. 28 units
D. 14 units

Answer 1

D. 14 units

Explanation:

it is a rectangle.

that means both diagonals are equally long.

E is in the middle of of diagonals.

so, since the whole diagonal (AC = DB) is 28 units long, one half of such a diagonal (AE = EC = DE = EB) is then

28/2 = 14 units long.