ahow4363
contestada

Using π = 3.14, find the area of a circle with a radius of 4.2. Round your answer to the nearest hundredth. will give brainliest

Respuesta :

tatiklisek

Answer:

55.39 units ^2

Step-by-step explanation:

A=pi*r^2

A=3.14*4.2^2

A=3.14*17.64

A=55.3896

A≈55.39 units ^2

wergompol23869

Answer:

55.42

Step-by-step explanation:

So since we know that how you calculate a circle's area is the formula -->

π (r)^2 (r is radius), We can simply just plug all the numbers in -->

3.14 (4.2)^2 => 4.2 squared is 17.64 => 3.14 (17.64) = around 55.417 but since we want to round it to the nearest hundred, we get 55.42

Hope this helps!

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