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andreev551 [17]
3 years ago
9

What is the perimeter of a semicircle if the diameter is 2

Mathematics
2 answers:
Lelechka [254]3 years ago
5 0

Answer: π+2

Step-by-step explanation:

perimeter of a whole circle is

2πr

r = 1

2π

divide by 2 bc its a semicircle

2π/2 = π

π+diameter

π+2

e-lub [12.9K]3 years ago
4 0

Answer:

Step-by-step explanation:

d = 2

arc length of semicircle = ½×circumference = ½×πd = π

perimeter of semicircle = π + d = π+2

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PLZ help i do know the answer to this already from another brainly question but i just would like to understand how its solved s
amm1812

Answer:

  • 66.56 cm

Step-by-step explanation:

<u>The figure consist of:</u>

  • 1. A rectangle with sides 10 cm and 17 cm
  • 2. A quarter circle

<u>The perimeter is:</u>

  • P = 1/4C + 2*10 + 17 + (17 - 8) + 8
  • P = 1/4*2*3.14*8 + 54 = 66.56 cm
4 0
3 years ago
|(1)
Yanka [14]
So first you would divide 1950/6 to find the amount for one year of their age.
Then you would multiply that by the ages, which should get you 4 numbers, then you all those numbers together. Try 9750.
3 0
3 years ago
Elena and Jada are 25 miles apart when they start moving toward each other. Elena runs at a constant speed of 6 mph and Jada wal
Setler [38]

<u>Answer:</u>

The Time taken by Elena and Jade  to meet up is 2.5 hours

<u>Explanation:</u>

Given,

Elena moves with a speed of 6mph  while Jada walks at a speed of 4 mph

Also, Distance can be calculated by the formula

Distance = Speed * Time

To find out the Total speed, i.e., speed of both Elena and Jada as both of them are walking in opposite direction we should add the speed of both the persons, if in same direction we should subtract the values  

Here it will be: 6 + 4 = 10mph

Distance apart is given as 25 miles. Substituting the values,

Distance = Speed * Time

25 = 10 * time

Time = 25/10

Time = 2.5 hour

Hence, It will take 2.5 hours to meet up.

3 0
3 years ago
A circular garden has a diameter of 8 yards. What is the area of the garden? Use 3.14 for π.
MissTica

Answer:

50.24 yards²

Step-by-step explanation:

The equation for area of circle is πr². So the calculation is 4² × 3.14.

16 × 3.14 = 50.24

4 0
3 years ago
De cite ori trebuie micsorat numarul 1000 pentru a obtine numarul cu 10 mai putin decit 50.
amid [387]
The answer is 19.8 to ur problem

5 0
3 years ago
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