Question

If the area of the rectangle is 154 km2, then what is the value of the missing side?

A) 5 km
B) 8 km
C) 14 km
D) 16 km

Answer 1

Area =
L×B=154
L×11=154
L=154/11
L=14km

C)14km


Hope it helps

Answer 2

Area of a rectangle: length * width

You are given the width, 11 km, so plug in 11 for width and 154 for area in the formula for area of a rectangle and solve for length (x).

x * 11 = 154

rewritten as: 11x = 154

Divide both sides by 11.

x = 14

Your answer is C) 14 km.