Question

Please help! I need this to pass. If you are trying to get points please just chose a different question and don't mess with mine. I am in a state of trouble and I just need a helping hand.

Answer 1

Answer:

The correct answer to the exercise is:

• Surface area of a circle = 633.1 $mm^{2}$

Step-by-step explanation:

To obtain the surface area of a circle, you can use the formula:

1. Surface area of a circle = π * $r^{2}$

Where:

• π = 3.14 (the exercise give this)
• r = Circle radius.

How you can see, in the picture gives you a straight line that passes through the circle side by side, the circle radius is half of that value, then:

• r = 28.4 mm / 2
• r = 14.2 mm

Now, we can replace the values in the first formula:

• Surface area of a circle = π * $r^{2}$

• Surface area of a circle = 3.14 * $(14.2 mm) ^{2}$

• Surface area of a circle = 3.14 * 201.64 $mm^{2}$

• Surface area of a circle = 633.1496 $mm^{2}$

• Surface area of a circle = 633.1 $mm^{2}$ (rounded to the nearest tenth).