Question

The radius of a round tablecloth is 2.75 feet, how many yards is needed

Answer 1

Answer:

5.23 yards

Step-by-step explanation:

The circumference of a circle is equal to

$C=2\pi r$

we have

$r=2.5 ft$

substitute the value

$C=2\pi r(2.5)=5\pi ft$

assume

$\pi =3.14$

$5\pi =5*3.14=15.7 ft$

convert feet to yards to get your answer:

5.23 yards

Answer 2

Answer:

Step-by-step explanation:

$A=\pi r^2\\ \\ A=\pi(2.75ft(yd/3ft))^2\\ \\ A\approx 2.64 yd^2$