The length of the rectangular parallelepiped is 1m, the width is 4 dm and the high is 30cm

The length of the rectangular parallelepiped is 1m, the width is 4 dm and the high is 30cm, which is equal to its surface area. expressed in m2.

1. A rectangular parallelepiped has six faces. 2 lateral, 2 lateral and 2 bases, which are equal to each other. Let’s define their areas.

1 meter = 10 decimeters = 100 centimeters.

a) 2 * 1 * 0.4 = 0.8 m².

b) 2 * 1 * 0.3 = 0.6 m².

c) 2 * 0.4 * 0.3 = 0.24 m².

2. Find out what the surface area is equal to.

0.8 + 0.6 + 0.24 = 1.64 m².

Answer: The surface area of a rectangular parallelogram is 1.64 square meters.