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
Furkat [3]
1 year ago
5

Find the area of thi emi-circle with diameter, d = 8cm. Give your anwer a an expreion in term of π

Mathematics
1 answer:
GrogVix [38]1 year ago
6 0

The area of semi-circle is 8π cm² with diameter of 8cm.

What is area of semi-circle?

  • The area that the semicircle occupies is that which is contained inside its perimeter. Half of a circle is a semicircle.
  • The area of a semicircle will therefore be equal to half that of a circle. Both the radius and the diameter can be used to get the semicircle's area.
  • The formula used to determine a semicircle's area in terms of radius "r" is written as follows:

Area of circle = πr²/2

  • Area of semi-circle=  πd²/8  is the formula used to determine a semicircle's area in terms of its diameter.
  • The value of the constant is 22/7, or 3.14.

Given:

Diameter = 8cm

Area of semicircle = πd² / 8

=π8² / 8

= 8π cm²

Hence, the area of semi-circle is 8π cm².

To know more about semi-circle check the below link:

brainly.com/question/15822332

#SPJ4

You might be interested in
Explain how u can prove
GuDViN [60]

Answer: Angles A and S are congruent

Step-by-step explanation:

7 0
2 years ago
A pool has 2 pipes, one to fill and one to empty it. Ms.Charles wants to fill the pool, but she mistakenly turns on both pipes a
dolphi86 [110]

-- The filler pipe can fill 1/6 of the pool every hour.

-- The drainer pipe can drain 1/10 of the pool every hour.

-- When they're filling and draining at the same time, the filler pipe
will win eventually, because it finishes more of the pool in an hour
than what the drain pipe can finish in an hour.

-- When they're filling and draining at the same time, then every hour,
1/6 of the pool fills and 1/10 of it empties.  The difference is   (1/6) - (1/10).

To do that subtraction, we need a common denominator.
The smallest denominator that works is 30.

       1/6  =  5/30

     1/10  =  3/30 .

So in every hour,  5/30 of the pool fills, and  3/30 of the pool empties.
The result of both at the same time is that  2/30 = 1/15  fills each hour.

If nobody notices what's going on and closes the drain pipe, it will take
<em><u>15 hours</u></em> to fill the pool.


If the drain pipe had <em><u>not</u></em> been open, the filler pipe alone could have filled
the pool <em><u>2-1/2 times</u></em> in that same 15 hours.  With both pipes open,
1-1/2 pool's worth of water went straight down the drain during that time,
and it was wasted. 

I would say that the school should take the cost of 1-1/2 poolsworth out
of Ms. Charles' pay at the rate of $5 a week.  I would, but that would
guarantee her more job security than she deserves after pulling a stunt
like that.

I hope this did not take place in California.


6 0
3 years ago
Simplify this expression. 3.4-1/2(0.75)
Afina-wow [57]
The simplified expression would be 3.025
3 0
3 years ago
Read 2 more answers
Passes through (-3, 1) and (-2,-1)
Rufina [12.5K]

Answer:

No, Isiah is not correct. The GCF of the coefficients is 1, and there are no common variables among all three terms of the polynomial. 5b4 is a factor of -25a2b5 and -35b4, but not a3. Additionally, a2 is a factor of a3 and -25a2b5, but not -35b4.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
30% of the students in sixth grade have a pet. There are 130 students in the sixth grade how many of them have a dog as a pet?
Zigmanuir [339]
39 students have a pet because 130 times .30 which represents thirty percent gives you the answer

3 0
4 years ago
Other questions:
  • Every day, Jason runs for 34 minutes and lifts weights for 49 minutes. How many minutes will Jason spend working out in 8 days?
    14·2 answers
  • Cherries cost $4/lb. Grapes cost $1.50/lb. you can spend no more than $6 on fruit,and you need at least 2lb in all.Create a grap
    8·1 answer
  • Which expression is equivalent to 4f^2/3 divided 1/4f
    10·2 answers
  • How to do this question by proving the identity?
    11·1 answer
  • Your next math test is worth 111 points and contains 32 problems. Each problem is worth either 4 points or 3 points. How many 3
    13·1 answer
  • Please answer thank you!
    10·1 answer
  • 6: Jamilah wants to buy a new edge control for $7, a t-shirt that costs $19, and a set of croc accessories that costs $10. She h
    9·2 answers
  • Which is the graph of the system of equations y = 3x + 6 and y = 3x +1?<br>​
    14·2 answers
  • Miguel runs 1/2 of a mile every 5 minutes, or 1/12 of a hour. At this rate, how many miles can he run in an hour.
    13·1 answer
  • If (2i/2+i)-(3i/3+i)=a+bi, then b=
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!