Question

HELP FAST PLZ I HAVE LITTLE TIME I DONT WANT TO FAIL.

Answer 1

Given:

Given that the diameter of the circle is $\frac{7}{2} \ cm$

We need to determine the radius, circumference in terms of π and circumference using π = 3.14.

Radius:

The radius of the circle can be determined using the formula,

$r=\frac{d}{2}$

Substituting $d=\frac{7}{2}$, we get;

$r=\frac{(\frac{7}{2})}{2}}$

Simplifying, we get;

$r=\frac{7}{4} \ cm$

Thus, the radius of the circle is $\frac{7}{4} \ cm$

Circumference in terms of π:

The circumference of the circle can be determined using the formula,

$C=2 \pi r$

Substituting $r=\frac{7}{4} \ cm$, we get;

$C=2 \pi (\frac{7}{4})$

$C=\frac{7}{2} \pi \ cm$

Thus, the circumference in terms of π is $\frac{7}{2} \pi \ cm$

Circumference using π = 3.14:

Substituting π = 3.14 in the circumference of the circle $C=\frac{7}{2} \pi \ cm$, we get;

$C=\frac{7}{2}(3.14)$

$C=10.99 \ cm$

Thus, the circumference of the circle is 10.99 cm