You are given a rectangle 60 cm long and 15 cm wide. Find the length of another rectangle, the area of which is equal
You are given a rectangle 60 cm long and 15 cm wide. Find the length of another rectangle, the area of which is equal to the area of the given one, and its width is 5 cm less than the width of the first rectangle.
Let’s calculate what the area of the first geometric figure will equal if we know that it is calculated as the product of its measurements (in this case 60 cm and 15 cm):
60 * 15 = 900.
Let’s determine how many centimeters the width of the second figure will correspond to if we know, according to the conditions from this task, that it is five centimeters shorter than the width of the first figure:
15 – 5 = 10.
Let’s determine how many centimeters the length of the second figure will correspond to:
900: 10 = 90.
Answer: The length is 90 cm.