Answer:
Height: 6ft
Base: 3 ft
Explanation:
Factors of 18 are: 1, 2, 3, 6, 9, 18
18 and 9 are both two big because of perimeter...this rules out 2 and 1 because those are the factor pairs which leaves 6 and 3
Area = bh = 3*6 = 18
Perimeter is adding all the sides twice
(6*2) + (3*2) = 12 + 6 = 18
Area = 18 Correct
Perimeter = 18 Correct