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1a.) Write an expression that represents the area of a circle with a radius of 7 units?

b.)Using your expression, solve for the area of a circle with a radius of 7 units.

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1a Write an expression that represents the area of a circle with a radius of 7 units bUsing your expression solve for the area of a circle with a radius of 7 un class=

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Answer:

Area= [tex]153.86 square-units[/tex]

Step-by-step explanation:

Area of any circle can be find with the help of the formula:

                                  [tex]\pi *r*r[/tex]

If the radius of the circle is given then its area can be find by putting 'r' in the formula.

We have given the radius of the circle= 7 units

So, the expression for the  area of the circle with radius= 7 units is:

                     Area= [tex]\pi *7*7[/tex]

                         '[tex]\pi[/tex]' is a constant have a fixed value of  

                                                                                 [tex]\frac{22}{7} \\or 3.14[/tex]

So, area of the circle = [tex]\pi *7*7[/tex]

                                         [tex]=\pi *49\\\\=3.14*49\\\\153.86 square-units[/tex]

Area= [tex]153.86 square-units[/tex]

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