Le Matou matheux : solid shapes

The lateral area of a cylinder

First, choose the value of the radius, then that of the height. r =	r = cm do not choose r = 2 cm	h= cm do not choose h =1 cm

Calculate the exact value of the lateral area
of the cylinder. (red area)

lateral area = x π cm²

Calculate the rounded value in cm², au mm² of the lateral area of the cylinder, to the nearest mm².
lateral area = cm² (choose π = 3.14)