Find the area of the circle.. PLEASE HELP

Mathematics

2 answers:

Leno4ka [110]3 years ago

8 0

Answer:

The area is 154 cm²

Step-by-step explanation:

Since the formula for the area of a circle is pi times the radius squared, divide the diameter in half to get the radius (7). Then, square the radius (49). Next, multiply that by pi (153.938). After that round to the nearest whole number (154). Hope that helps!

-Kyra

Amiraneli [1.4K]3 years ago

4 0

Answer:

A = 154 cm^2

Step-by-step explanation:

We know the diameter of the circle

We need to find the radius

d = 2r

14 = 2r

Divide by 2

14/2 = 2r/2

7=r

Now we can use the formula for area

A = pi r^2

A = pi (7)^2

A = 49pi

Replace pi with 3.14

A = 49(3.14)

A = 153.83

Rounding to the nearest whole number

A = 154 cm^2

You might be interested in

Describe a real world problem you can solve with a calculator and a measuring stick (mathematics)

emmainna [20.7K]

- Calculating the area of a soccer field, Calculate area of _______

- Calculate the average height of everyone in your family

5 0

2 years ago

What is the range of f(x) = sin(x)?

Diano4ka-milaya [45]

The range of sin(x) is [-1,1].
No matter what the value of x,pi,pi/2,pi/4,pi/6,-pi/2,etc the value of sinx will always be between -1 and 1(both included)