The rectangle is 0.9 m wide and three times longer. Find the area of this rectangle.

To find the area of a rectangle, you need to know the value of its two sides.
1) If the length is three times the width, you must multiply the width value 0.9 by 3:
0.9 x 3 = 2.7 (m) – the width of the rectangle.
2) The area of a rectangle can be found by multiplying the width of the rectangle by its length. Hence,
0.9 x 2.7 = 2.43 (m2).
Answer: the area of the rectangle = 2.43m2.