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
Luda [366]
3 years ago
10

PLEASE HELPPPPPPwhat is a semicirles permitier if the diameter is 4​

Mathematics
1 answer:
trapecia [35]3 years ago
6 0

The straight edge of the semicircle is 4 units, as this is this the diameter.

The circumference of the full circle is

C = pi*d = pi*4 = 4pi

which is the distance around the full circle (aka circle's perimeter)

So half of this is 4pi/2 = 2pi

Add this onto the straight edge length to get 4+2pi as the exact distance around the entire semicircle. This includes both straight and curved portions.

If you use the approximation pi = 3.14, then 4+2*pi = 4+2*3.14 = 10.28 is the approximate answer. To get a more accurate answer, use more decimal digits in pi.

---------------------------------------------------------

In summary,

exact answer in terms of pi is  4+2pi units

approximate answer is roughly 10.28 units (using pi = 3.14)

You might be interested in
Please Help! Which of the following properties was used in the expression shown here?
Elena L [17]

Answer:

Distributive Property

Step-by-step explanation:

Multiply 5 with each number in the parentheses

Then add the variables after

3 0
3 years ago
Please help! Will get brainliest!!!
ASHA 777 [7]
Chart;the answer is b

and it makes sense answer is ; also b
3 0
3 years ago
Answers?? With work please
Naya [18.7K]
1.)-2
2)-2
3.)-3
4.)-1
5)1
6.)-6
7.)-6
8.)4
9.)0
10.)no solution
11.)-3
12.)all real numbers
13.)-1
14.)5
On working on the work for the first problem so u understand
7 0
3 years ago
Quadrilateral TRPK ~ Quadrilateral EWMN Which statements are correct? Select all that apply. Question 8 options:
8090 [49]
For starters, we know that the angle measures have to be similar or the same, since similar shapes always contain the same angle measures. We can use the way that the letters of each shape line up to identify which angle correspond to each other. Angle R should be congruent to angle W, but angle P is not congruent to N, it would be congruent to M though. Now we get to the tricky part, figuring out line segment lengths. Again using the letters in each shape, we can see that TK and NM do not correspond to each other, and thus cannot be congruent or similar. But, with RP/WM, this is correctly lined up with each other. TR/EW, same with this one, and TK/EN is also the same. With this Info, we can figure out the dilation of the smaller shape, or just figure out if they are similar or not. (So pick B. And D.)
8 0
3 years ago
mya average 86 points on five tests. what would she have to score on the sixth test to bring her average up by one point
Ray Of Light [21]

Answer:

The answer is 88.

She would have to score 88

Step-by-step explanation:

86 + 88 = 174

174 ÷ 2 = 87

4 0
3 years ago
Read 2 more answers
Other questions:
  • Are there less than 1 million exactly 1 million or greater than 1 million miligrams in a kilogram?
    9·2 answers
  • What is 35 million in scientific notation
    9·1 answer
  • There are eight students on the minibus five of the students are boys what fraction of the students are boys
    15·2 answers
  • Describe what type of information can be determined from a pie chart
    9·2 answers
  • 14 and 11/12 + 3 and 1/6
    6·1 answer
  • 95 out of 1200 randomly selected people surveyed in the u.s said they would rather watch baseball on television than go to a gam
    15·1 answer
  • Tickets to Wrestlemania cost 600. the sales tax is 30% what is the final price
    5·1 answer
  • Is this correct if not then can u please help me
    9·2 answers
  • The point (8,15) is on the graph of y = f(x).
    9·1 answer
  • 6. The table shows the equations Mr. Berger discussed in math
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!