Use the formulas for a cylinder: r = 8 h = 4 lsa = ?

or

Step-by-step explanation:

The formula that is used to calculate the Lateral surface area (LSA) of a cylinder is:

Being the radius of the cylinder r and the height of the cylinder h.

Knowing tha radius 8 units and the height 4 units, you can substitute values into the formula  .

Therefore, the Lateral surface area of the cylinder with radius 8 and height 4 is:

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24