Ryder drew a scale drawing of the rectangular pool in his backyard using a scale of 1 in = 5 ft. He wants to add a border around the perimeter of the pool using 12-in square tiles. If the length of the drawing of the pool is 6 in, and the width of the drawing is 5 in, how many tiles does Ryder need for the border?

Question

ddcamp · Answer

6 in on the drawing is 30 ft (6 in on page times 5 feet per inch)
5 inches on the drawing is 25 ft
Perimeter = 2l + 2w 
= 2*30 + 2*25 
= 60 + 50 
=110 ft perimeter.

110 tiles around the edges, and then 4 extra (one for each corner)
Grand total: 114 tiles

anonymous · Answer

thanks