four rectangular pictures each have an area of 2400cm2 the sides are all multiples of 5 what sizes could the pictures be
A = a * b = 2400 cm2
A new = 5 * a * 5 * b = 25 * a * b = 25 A
A new = 25 * 2400 = 60000 cm2
A new = 5 * a * 5 * b = 25 * a * b = 25 A
A new = 25 * 2400 = 60000 cm2