The length of the rectangle is 24 cm. The length is 4 times the width. Find the perimeter and area of this rectangle.

Find the length of the rectangle if it is 4 times the width – 24 cm:

24 * 4 = 96 cm.

Find the perimeter of the rectangle:

2 * (24 + 96) = 2 * 120 = 240 cm.

Find the area of the rectangle:

24 * 96 = 2304 cm².

Answer: the perimeter of the rectangle is 240 cm, and the area is 2304 cm².

Topic 2.

Let’s do the following:

a) 4 dm 6 cm – 35 mm = 4, 6 – 35: 100 = 4.6 – 0.35 = 4.25 dm;

b) 1 km – 50 m = 1000 – 50 = 950 m.