Question

4 Eva measures the diameter of a circle as 15.9 cm. She uses a calculator to work out the area. She says, The area is 198.5565097 cm”. Round this answer to an appropriate degree of accuracy.​

Answer 1

Answer:

We can round off 198.5565097 cm as 199cm

Step-by-step explanation:

Answer 2

The appropriate degree of accuracy of the area of the circle she got is approximately a whole number which is; 199 cm²

How to approximate numbers?

We are told that;

Diameter = 15.9 cm

Area = 198.5565097 cm²

Now, we are told that was the are she got from the calculator. That is calculator value and as such for accurate approximation we have to approximate to the nearest whole number.

198.5565097 cm² ≈ 199 cm²

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