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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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Trigonometry
Rainbow [258]

Answer:

144°

Step-by-step explanation:

We are asked to convert 4π/5 radians to degrees.

#We know that:

1 \ rad= 57.296\textdegree =180/\pi

Therefore, we multiply 4π/5 radians  by 180/π to get its degrees equivalent:

=\frac{4\pi}{5}\ rad\times \frac{180}{\pi}\\\\=144\textdegree

Hence, the degrees equivalent of 4π/5 rad is 144°.

7 0
3 years ago
Which set of integers is in order from greatest to least?
scoray [572]

Answer:

-12, -6, 1, 4, 7

Step-by-step explanation:

the higher the number is when it's negative the smaller the number actually is

3 0
3 years ago
How many different triangles can you make with 14cm, 10cm and 50cm sides?
vovangra [49]

Answer:

You can make NO triangles.

When given 3 sides of a triangle, The longest side must be LESS than the sum of the other 2 sides.

Longest Side = 50 cm

50 is NOT less than 14 + 10, therefore, we have no triangle.


Step-by-step explanation:


8 0
3 years ago
Which of the following statements are true about the
Salsk061 [2.6K]

Answer:

w and x are adjacent

w and z are supplementary

y and z are supplementary

x and z are vertical angles

Step-by-step explanation:

3 0
2 years ago
On Sunday, Antonio spent a total of 3 1/4 hours driving and 1 3/4 hours gardening. How much longer did he spend driving than gar
sergeinik [125]

3 1/4 = 13/4

1 3/4 = 7/4

13/4-7/4= 6/4

6/4= 1 1/2 hours more

7 0
3 years ago
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