Answer:
To find the area of a circle when the diameter was given.
Formula:
[tex] a = \frac{\pi {d}^{2} }{4} [/tex]
Solution:
[tex]a = \frac{3.14 \times {7}^{2} }{4} = \frac{153.86}{4} = 38.465[/tex]
Answer:
[tex]38.465 \: [/tex]
Step-by-step explanation:
Hmm, What is the unit?
Unit is important in measuring, but if the problem doesn't give an any unit, don't remind it.
