Question

A round table top has a diameter of 2.6 meters.What is its surface area

Answer 1

Hello!

To find the area of a circle you use the equation


`\pi r^(2)`

r is radius which is half the diameter

r = 2.6 / 2

r = 1.3

Put in the values you know


`\pi 1.3^(2)`

Square the number


`1.69 \pi = 5.31`

The answer is
`1.69 \pi` or ≈5.31

Hope this helps!

Answer 2

that's just area of a circle

remmber that
`A=\pi r^2` where r=radius and A is area and pi is pi or about 3.14159265

so if diameter is 2.6, ah, tricky, they give you dameter
rmemeber that d/2=r so 2.6/2=d/2=r=1.3

so

`A=\pi r^2`

`A=\pi (1.3)^2`
using your calculator

`A=5.309 m^2`


the surface area is
`5.309 m^2`