Question

The length of the deck is 3 times it’s width. If the decks perimeter is 16 ft what is the decks area

Answer 1

• 12 ft²

Explanation:

Given

• l = 3w
• P = 16
• A = ?

Solution

Use perimeter formula

• P= 2(l + w) = 2(w + 3w) = 8w

Find width:

• 8w = 16 ⇒ w = 2 ft

Find length:

• l = 3*2= 6 ft

Find area:

• A = lw = 6*2 = 12 ft²