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kompoz [17]
3 years ago
14

30 is 12% of what numbr

Mathematics
1 answer:
ruslelena [56]3 years ago
5 0

30 IS 12% OF 250

HOPE IT HELPS! :D

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Work out the area of a circle whose diameter is equal to 14 cm.
Lera25 [3.4K]

Given:

The diameter of the circle = 14 cm

To find:

The area of the circle.

Solution:

We have,

Diameter of the circle = 14 cm

We know that the radius of the circle is half of its diameter. So,

r=\dfrac{14}{2}

r=7\text{ cm}

The area of a circle is:

A=\pi r^2

Substituting \pi=\dfrac{22}{7}, r=7 in the above formula, we get

A=\dfrac{22}{7}\times (7)^2

A=22\times 7

A=154

Therefore, the area of the circle is 154 square cm.

6 0
3 years ago
Can you please help me with these three for my timed test I have rn. And maybe show your work too please!! Thank you :)
lina2011 [118]

Answer:

HI ITS NOT AB BECUSAEW SHE IS NOT HERE  TODAY

Step-by-step explanation:

5 0
4 years ago
1. Which other expression has the same value as (-14) - 8?​
ludmilkaskok [199]

Answer: −22

Step-by-step explanation:

=−14−8

=−14+−8

=−22

6 0
3 years ago
Katherine wants to prove that the measures of the interior angles of a triangle have a sum of 180. She draws a triangle and exte
Oliga [24]

Answer:

As we know, if we add up the interior and exterior angles of one corner of a triangle, we always get 180. the exterior angle in question is equal to the sum of the other two angles in the triangle

8 0
3 years ago
PLEASE HELP!!!
gregori [183]
Your answer is B. I hope this is helpful!
3 0
3 years ago
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