All categories

3 years ago

Find the perimeter of a circle whose diameter is 7 cm

Mathematics

1 answer:

ivanzaharov [21]3 years ago

8 0

Find the perimeter of the circle is the same as finding the circumference of the circle.

Circumference Formula: C = 2πr

Divide the diameter by 2 to find the radius.

7 / 2 = 3.5

Solve using the given values.

C = 2(3.14)(3.5)

C = 2(10.99)

C = 21.98

Therefore, the circumference (perimeter) of the circle is 21.98cm²

Best of Luck!

You might be interested in

Plzzz help due tomorrow

Orlov [11]

Answer:

1: 4 × 3 + 5

2: 2 × X - 4 + 3 × X + 5

2 × 2x - 4 + 3 + 5

3: X + 4 × X + 6

4 0

3 years ago

You have to complete at least 10 physics problems and math problems within 2 hours before you playing video games. It will take

Ghella [55]

Answer:2

Step-by-step explanation:

Given

Physics problem requires 20 min

Math problem require 10 min

suppose x question of Physics and y questions of Math are done

so according to the question

$x+y\geq 10\ldots 1$

Time require for x Physics problem $=20 x$

Time require for y Math problem $=10 y$

so,

$20 x+10 y\leq 120\ldots 2$

On solving (1) and (2)

we get $x=2$ and $y=8$

Maximum no of Physics question which can be solved is 2

5 0

3 years ago

The base of the pyramid is a square. what is the volume of the pyramid. enter your answer in the box.

Ugo [173]

Answer:

The volume of the pyramid is $672\ cm^{3}$

Step-by-step explanation:

we know that

The volume of the pyramid of the figure is equal to

$V=\frac{1}{3}b^{2}h$

we have

$b=12\ cm$

$h=14\ cm$ ----> the height must be perpendicular to the base

substitute

$V=\frac{1}{3}(12^{2})(14)=672\ cm^{3}$

7 0

2 years ago

I already know the answer to this but

irina [24]

Answer:

yes

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A ball is thrown in the air from a height of 3 m with an initial velocity of 12 m/s. To the nearest tenth of a second, how long

wel

Answer: 0.3m/s

Step-by-step explanation:

Height/ velocity

3m/12m per sec

Time= 0.25metres per seconds

To the nearest tenth, 0.3m per seconds

5 0

3 years ago

Find the perimeter of a circle whose diameter is 7 cm​

Find the perimeter of a circle whose diameter is 7 cm