Answer:
The area of circle with radius half of original circle is 7 π cm² .
Step-by-step explanation:
Given as :
The Area of original circle = 28 π square centimeter
Let The radius of original circle = R
Let The area of circle with radius half of original circle = A square centimeters
Let The radius of circle with radius half of original circle = R'
Now, According to question
∵ Area of original circle = π × radius²
So, 28 π cm² = π × R²
Or, R² = 
Or, R² = 28 cm²
∴ R =
cm
i.e R = 2
cm
So, The radius of original circle = R = 2
cm
<u>Again</u>
∵ The radius of circle with radius half of original circle = R'
So, R' = 
i.e R' = 
∴ R' =
cm
So, The area of circle with radius half of original circle = π × R'²
i.e A = π × R'²
Or, A = π ×(
) ²
or, A = π × 7
So, The area of circle with radius half of original circle = 7 π cm²
Hence The area of circle with radius half of original circle is 7 π cm² . Answer
Answer:
m(10^8)-n
Step-by-step explanation:
i believe it would be this equation
Here is an example: If you go 100 miles every 2 hours, what is the unit rate? The unit rate would be 50 miles. Here is all you have to do. You divide (in my case) miles by (in my case) 2 hours, which equals 50 miles. Does that help?
Jill is one of the 18 students out of 20 students in the club that will not be picked.
18/20 = 0.9
The probability that Jill will not be picked is a 0.9 chance (90%).<span />
<span>q + d=19
0.25q + 0.1d=4
</span><span> (d)
-0.1(q + d=19)
0.25q + 0.1d=4
Opposites cancel
-0.1q -0.1 d=1.9
0.25q + 0.1d=4</span>