An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20 cm.
What is the area A of the circular cross section of this pipe?

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The area formula is πr². Since, we are given the diameter we need to find the radius by dividing the diameter by 2.

radius = 20/2 = 10

Area = π(10)²

Area = 100π

The area of the pipe is 100π square units OR 314.16

sine

step-by-step explanation:

45.36 feet per second.

step-by-step explanation:

to find the most accurate determination for the number of feet per second tyrone traveled on his way to work let us convert miles to feet and minutes to seconds.

1 mile = 5280 feet.

1 minute = 60 seconds.

now we will divide 158400 by 3492 to find the most accurate determination for the number of feet per second tyrone traveled on his way to work.

therefore, tyrone traveled on his way to work at the rate of 45.36 feet per second.