Question

The perimeter of a chalkboard is 14 feet. The board is 4 feet long. How tall is it?
feet

Answer 1

3 feet tall

Explanation:

14-4-4=6 divided by 2=3 feet tall on two side

Answer 2

3 feet

Explanation:

P=2(a+b)

14=2(4+b)

14=8+2b

2b=6

b=3