Question

Mary is building a rectangle enclosure for all her chickens. The length of the enclosure is 22.5m and the width is 13.2m. If she already has 30m of fencing, how much more does she need?

Answer 1

41.4 meters

Explanation:

22.5 + 13.2 = 35.7

35.7 × 2 = 71.4m (because of the other 2 sides of the rectangle)

71.4-30=41.4m