Eric is planning to paint the four pillars that are attached to the front of his house. but, he needs to know how many square feet he'll be painting before he buys the paint. the pillars are each 10 feet tall and have a 1-foot diameter.

He will be painting 125.6 square feet before he buys the paint.

Step-by-step explanation:

Since we have given that

Diameter of pillar = 1 foot

Radius of pillar = 0.5 feet

Height of pillar = 10 feet

Since there are 4 pillars.

We need to paint the 4 pillars.

So, for this we want surface area of each pillar.

As we know the "Lateral surface area of cylinder":

Area of 4 pillars would be

Hence, He will be painting 125.6 square feet before he buys the paint.