3 years ago

A circle has an area of 81pi square units. What is the diameter of the circle

Mathematics

2 answers:

Sonja [21]3 years ago

6 0

The diameter of the circle is 18 unit which is A. Hope it help!

Oksanka [162]3 years ago

6 0

Area of circle (Formula) = πr^2
81π = πr^2 
r^2 = 81 
radius = 9 

Hope this helps!

You might be interested in

Micah is watching a TV program that is 2 hours long during the program there are six commercials that are each 90 sec. How many

Sergeu [11.5K]

Answer:

111 minutes

Step-by-step explanation:

step 1

Find out how long are the six commercial

Multiply the number of commercials by 90 seconds

$90(6)=540\ sec$

Convert to minutes

Remember that

$1\ min=60\ sec$

$540\ sec=540/60=9\ min$

step 2

Subtract the duration of six commercials from the duration of the program

Remember that

$1\ h=60\ min$

$2\ h=2(60)=120\ min$

therefore

$120-9=111\ min$

4 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST

Neko [114]

The answer is 3 4/5 I believe

7 0

2 years ago

Josh ate 7/8 pizza and Jerry ate 1/2 pizza. how much more did Josh eat then Jerry

xz_007 [3.2K]

Step-by-step explanation:

6/5 this is the answer hopes this help

8 0

3 years ago

Fruit Slice Flavor Small Bag Medium Bag Large Bag Orange 20 40 60 Grape 10 20 30 Cherry 5 10 15 Total Slices 35 70 105 Best Ever

Maksim231197 [3]

It depends on how much its the total

7 0

3 years ago

Read 2 more answers

Write 61/4℅ as a decimal

marta [7]

61/4 % converted into a decimal is 15.25

3 0

3 years ago