A triangle has sides that measure 2 units, 5 units, and 5.39 units. What is the area of a circle with a circumference that equals the perimeter of the triangle? Use 3.14 for π, and round your answer to the nearest whole number.

Question

ExplodingDryer · Answer

plz help

TheSmartOne · Answer

Perimeter of a triangle = sum of a sides

What would the perimeter be?
Add up those three numbers and that's your perimeter.

Now, circumference = $ 2\pi r$
plug in that number you just got for the perimeter with the circumference

solve for r
So basically divide by $ 2 \pi$ on both sides
You should now have r = some number

Finally, to find the area
Area = $\pi r^2$
Plug in that value for r that you just got and calculate the area

And that would be the area of a circle that has a circumference that is equal to the perimeter of that triangle

TheSmartOne · Answer

Let me know what you get or if you'd like further clarification! I'd be more than happy to help :)