1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Korolek [52]
3 years ago
5

The area of a circle is 23.79cm2. Find the length of the radius rounded to 2 DP.

Mathematics
1 answer:
Gnom [1K]3 years ago
8 0

Answer:

2.75cm

Step-by-step explanation:

Given data

Area of circle=  23.79cm^2

We know that the formula for the area of a circle is

Area= πr^2

Substitute

23.79=3.142*r^2

23.79/3.142= r^2

7.57=r^2

Square roo both sides

r= √7.57

r= 2.75 cm

Hence the radius is 2.75cm

You might be interested in
If the perimeter of this quadrilateral (2ft 13ft 15in this is the quadrilateral) is 79 inches, what is the measure of the missin
kumpel [21]

Answer:

The missing side length is 27 in

Step-by-step explanation:

see the attached figure

we know that

1 ft= 12 in

step 1

Convert ft to in

2 ft=2*12=24 in

Note ----> the given measure is 13 in instead of 13 ft

step 2

Find the missing side length

The perimeter of a quadrilateral is the sum of its four side lengths

Let

x------> the missing side length

P=x+24+13+15

P=79 in

so

79=x+24+13+15

x=79-52=27 in

The missing side length is 27 in

7 0
3 years ago
your sister is selling girl scout cookies that cost $4.25 a box. your family bought 6 boxes. how many more boxes of cookies must
Nataly [62]
$4.25 • 6= $25.5
$255-$25.5= $229.5
$229.5/$4.25= 54 boxes of cookies
6 0
2 years ago
7. Stan is serving lemonade at the school's dance out of no
Lilit [14]

Answer: 540 cups

Step-by-step explanation:

Diameter = 20

Radius = 20/2=10

Volume of a cylinder: pi(r^2)h = 3600pi

Cone = (pi(r^2)h)/3 = (20pi)/3

3600pi/(20pi/3) = 540 cups

7 0
3 years ago
Read 2 more answers
What is the area of the circle to the nearest tenth of a unit?
kodGreya [7K]

Answer:

15.2

Step-by-step explanation:

PiRsquared

Pi x 2.2²

5 0
3 years ago
Simplify 7.4z - 5 (-1.6z + 2.4) please
Sergeu [11.5K]
The answer is 15.4z-12
8 0
3 years ago
Other questions:
  • 43 over 50 0.91 7 over 8 84% least to greatest
    14·1 answer
  • What is 2/15+8/15 in simplest form
    5·1 answer
  • What two numbers add together to get -13 and multiply to get -30? They have to be the same numbers.
    13·2 answers
  • Raoul rode a elevator up e floors. He entered the elevator on the 5th floor and exited on the 34th floor which equation shows a
    6·1 answer
  • the ratio of males to females at a camp is 5 to 4. If there are 40 males at the camp, how many females are there?
    5·2 answers
  • Point C is the center of the circle. What is the measure of ACB∠ if mAB is equal to 102
    14·1 answer
  • Christine, Odys, and Ariela decided to go to the movie. They got a discount of $10
    11·2 answers
  • How many square meters of carpet are needed to cover the hallway and living room?
    14·1 answer
  • what is the slope of the line that passes through the points (-8,3) and (-8,2). write your answer in the simplest form​
    13·1 answer
  • Please help me???.....
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!