find the area of a parallelogram with base 5cm and altitude 4.2cm
area of parallelogram = base x height
= .....
To find the area of a parallelogram, you need to multiply the length of the base by the length of the altitude. In this case, the base is given as 5 cm and the altitude is given as 4.2 cm.
So, to find the area, you can use the formula:
Area = base x altitude
Area = 5 cm x 4.2 cm
Area = 21 cm²
Therefore, the area of the parallelogram is 21 square centimeters.