The perimeter of a map of the world is 26 feet. The map is 8 feet wide. How tall is it?

Answer 1

perimeter of a rectangle = (2 x length) + (2 x width)

In this question, the perimeter is equal to 26 feet and the width is equal to 8 feet.

26 feet = (2 x length) + (2 x 8 feet)

26 feet = (2 x length) + 16 feet

To find the length of the map, subtract (2 x width) from the perimeter and then divide by 2.

26 feet - 16 feet = 10 feet = (2 x length)

length = 10 feet / 2 = 5 feet

Check the answer:

(2 x 5 feet) + (2 x 8 feet) = 10 feet + 16 feet = 26 feet

Answer 2

P = 2*L + 2*w

26 = 2*8 + 2 * w

26 = 16 + 2* w

10 = 2*w

w = 5

Answer 3

Maps are rectangles, and the total perimeter of a rectangle is:

2(l + w) = P

We know the width is 8 ft and the perimeter is 26, therefore:

2l + 2(8) = 26

2l + 16 = 26

2l = 10

l = 5 ft