Two bulletin boards in the main school hallway need to be covered with colored paper and a border. the first board has a length of 15.5 feet and a width of 4.8 feet. the second board has a length of 12 feet and a width of 5.7 feet. how much more border does the first board need than the second board?

The first board needs 5.2 feet of border more than the second board

Step-by-step explanation:

we know that

To find out how much more border does the first board need than the second board, subtract the perimeter of the second board from the perimeter of the first board

Remember that

The perimeter of a rectangle is equal to

step 1

Find out the perimeter of the first board

we have

substitute in the formula of perimeter

step 2

Find out the perimeter of the first board

we have

substitute in the formula of perimeter

step 3

Find out the difference of perimeters

therefore

The first board need 5.2 feet of border more than the second board