Problema Solution
a swimming pool is 35 meters by 20 meters.A 2 meters concrete wall is built around the pool.What is the area of the wall?
Answer provided by our tutors
35 x 20 = 700 meters2 this is the area of the pool.
new area is (35+2+2) x (20+2+2) = 963 meters2
we add 2 meters on each side of the 35m and 2meters on each side of the 20m.
so new area - the pool area = wall area.
963 - 700 = 263 meters2