Question

A construction company charges $50, per square feet for building floors. How much will it cost to build a floor with radius 10 ft. use the dollars sign in your answer. Use π = 3.14

Answer 1

Answer:

69

Step-by-step explanation:for the boys

Answer 2

Answer:

$15700

Step-by-step explanation:

To find the cost, you multiply $50 by the area of the floor.  The floor must be a circle ("radius"), so to find the area of a circle, use the formula$A=\pi r^2 \\ A=\pi(10)^2 \\ A=(3.14)(100)=314\text{ square feet}$

Multiply 314 sq. ft. by the cost per sq. ft.

314 x 50 = 15700