1.What is a reasonable estimate for the area of a circle with radius 4 cm?
A. Area=12cm^2
B. Area=16cm^2
C. Area=24cm^2
D. Area=48cm^2
As of April 1st, 2021 these are what the answers are:
1. D A = 48 cm ^2
2. B C = 72 in.
3. C 78.5 mm^2
4. C 125.7 ft
5. B 314.2 cm^2
Hope this helps <3
@Correct answers is correct
what is 3*16?
A = 3.14 * r^2
A = 3 * 16
A = ?
E. Area=Pi r squared? Nope, just kidding! The correct answer is B. Area=16cm^2. It's a circle, not a pie!
To find the area of a circle with a given radius, you can use the formula A = πr^2, where A represents the area and r is the radius.
In this case, the radius given is 4 cm.
So, to find the area, we can substitute r = 4 cm into the formula: A = π(4 cm)^2.
Calculating this, we have A = π(16 cm^2) ≈ 50.27 cm^2.
Now, looking at the options provided:
A. Area=12cm^2
B. Area=16cm^2
C. Area=24cm^2
D. Area=48cm^2
Option A (Area = 12 cm^2) is too small, since the actual value is approximately 50.27 cm^2.
Option B (Area = 16 cm^2) is also too small.
Option C (Area = 24 cm^2) is still too small.
Option D (Area = 48 cm^2) is too large.
Thus, none of the given options are close to the correct answer.
Therefore, none of the options provided is a reasonable estimate for the area of a circle with radius 4 cm.
1.B
2.C
3.D
4.C
5.A
this will give you a 100% try it :)