Answer:
G
Step-by-step explanation:
It depends on where point A starts from if point a is 5,7 then the next point for A will be 2,11 so do you have a starting point for A?
Answer:
7/3
Step-by-step explanation:7/3
Q6. The answer is <span>D)8 cm.
The circumference (C) of a circle with radius r is: C = 2r </span>π
The diameter (d) of a circle is double its radius r: d = 2r
Therefore, the circumference of a circle can be written as: C = d π
<span>
If the circumference of a circle is 8π cm: C = </span>8π cm, then
C = d π = 8π cm
d π = 8π cm
Divide π from both sides:
d π / π = 8π cm / π
d = 8 cm
Thus, the diameter of the circle is 8 cm.
Q7. The answer is C) 2π
The circumference (C) of a circle with radius r is: C = 2 r π
Therefore, if r is known, to calculate C, 2π must be added to r.
For example, r = 4
C = 4 * 2π = 8π
Q8. The answer is <span>D)Multiply the diameter by 3.14 to find the circumference
The circumference of a circle is:
C = 2r </span>π
C - the circumference
r - the radius
π = 3.14 (mathematical constant)
However, the diameter of a circle is twice of its radius:
d = 2r
Hence, the circumference can be expressed as: C = d * π
Since Allison knows the diameter of the circle, she must multiply it by π to get the circumference, i.e. she must multiply the diameter by 3.14 (since π = 3.14)
Q9. The answer is <span>B)<span>First measure the diameter then multiply that by π to find the circumference.
The first Devin's statement </span></span><span>"First measure the radius (r), then multiply that by 2, then multiply that answer by π, and that will give you the circumference (C)." can be expressed as:
r * 2 * </span>π = C
But, it should be taken into consideration that the sum of two radius (r) is the diameter (d) of the circle: d = 2r
So, C = 2 r π = d π
So, another statement should be: "First measure the diameter then multiply that by π to find the circumference.";
d * π = C
Q10. The answer is <span>D)<span>1056.25 π
</span></span>
The circumference (C) of the circle with radius r is:
C = 2r π
C = 65 π
2r π = 65 π
Divide both sides by π:
2r π / π = 65 π / π
2r = 65
r = 65/2
r = 32.5
The area (A) of the circle with radius r is:
A = r²π
r = 32.5
A = (32.5)²π
A = 1056.25 π
Here u go refer to the attachment below! v