Please Help Find the area of a circle with radius,
r
= 87cm.
Give your answer rounded to 3 SF.

Area = pie*r^2
Area= 23778.71

Step-by-step explanation:

so, to repeat, the radius r of the circle is 87 cm.

the area of a circle is

pi×r²

so, in our case

A = pi×87² = pi×7569 = 23,778.7148... cm²

so, how to give this answer with only 3 significant figures ?

as you can see, there are already 5 figures before the decimal point.

3 attempts :

1. 3 significant figures after the decimal point : 23778.715 cm²

2. scientific notation with 3 SF : 2.38×10⁴ cm²

3. converting to m² (1m² = 10000cm²) : 2.38 m²

well I would write it as a fraction so I think it would be 6/8 because the are altogether 8 and the probability of it not being a hobbit or an umbrella is 6 you count all of the characters except hobbit and then you count all of the tools except an umbrella and that gives you 6 so it is 6/8. hope that helped:]