Help please- Question 1 : Find Surface area of the cone atached below and use 3.14 for Pi

Question 2 : Fiind AB

Question 3 : Which figure has the greatest volume, (is not drawn to scale)

Attachments are below. I would really appreciate your help. Thank you!

0.07

Step-by-step explanation:

To round a decimal to the nearest hundredth, look at the thousandths place.

If the number in the thousandths place is greater than or equal to 5, we will round up the hundredths place.

If it is smaller than 5, we will keep the number the same.

In the number 0.065, the thousandths place value is 0.005. So, we will round up the hundredths place.

The hundredths place value is 0.06, so we will round it up to 0.07.

So, 0.065 will round to 0.07.