Question

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.

Answer 1

Assume that the pillars are cylindrical..you're looking for the lateral surface area correct? to get the lateral surface area, you use the formula LSA = 2rh(pi) where r is radius h is height substitute the values... h = 10 d = 1 so r =1/2 so LSA = 2 (1/2)(10)(3.14) LSA = 10(3.14) LSA = 31.4 sq ft :D                                      Can You Mark Me Brainlest Plz...

Answer 2

Answer: 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":

$Area=2\pi rh\\\\Area=2\times 3.14\times 0.5\times 10\\\\Area=31.4\ sq.feet$

Area of 4 pillars would be

$4\times 31.4\\\\=125.6\ sq.feet$

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