Answer:
See below.
Step-by-step explanation:
1.) 5√6
2.) 6√2
3.) 3√7
To solve this without the use of a calculator, split the given number into a series of products (numbers multiplied) and look for pairs.
Look at the attached example of Problem 1 to get a better idea of what I mean.
7680
128,000 x .06= 7680
The area is 16.62
The expression you use is pi x r squared. which is 3.14 x 2.3 x 2
