Find the circumference of a circle whose radius is 14 cm, and whose diameter is 49 cm.

March 23, 2026Mathematics

ScanSolve AI Answer

March 23, 2026

Answer

28\pi~cm

Circumference of a circle with radius 14 cm

Step 1: Formula for circumference
$C = 2\pi r$

Step 2: Substitute $r = 14~\mathrm{cm}$
$C = 2\pi \times 14~\mathrm{cm}$

Step 3: Simplify
$C = 28\pi~\mathrm{cm}$

28\pi~\mathrm{cm}

Circumference of a circle with diameter 49 cm

Step 1: Formula for circumference
$C = \pi d$

Step 2: Substitute $d = 49~\mathrm{cm}$
$C = \pi \times 49~\mathrm{cm}$

Step 3: Simplify
$C = 49\pi~\mathrm{cm}$

49\pi~\mathrm{cm}

Area of a circle with radius 12 cm

Step 1: Formula for area
$A = \pi r^{2}$

Step 2: Substitute $r = 12~\mathrm{cm}$
$A = \pi (12~cm)^{2}$

Step 3: Simplify
$A = \pi \times 144~cm^{2}$
$A = 144\pi~cm^{2}$

144\pi~\mathrm{cm^{2}}

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Circumference of a circle with radius 14 cm Step 1: Formula for circumference C = 2 r Step 2: Substitute r = 14~cm C = 2 × 14~cm Step 3: Simplify C = 28~cm 28~cm Circumference of a circle with diameter 49 cm Step 1: Formula for circumference C = d Ste…

Asked on March 23, 2026Mathematics

This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

ScanSolve AI AnswerAnswered on March 23, 2026

Circumference of a circle with radius 14 cm Step 1: Formula for circumference C = 2 r Step 2: Substitute r = 14~cm C = 2 × 14~cm Step 3: Simplify C = 28~cm 28~cm Circumference of a circle with diameter 49 cm Step 1: Formula for circumference C = d Step 2: Substitute d = 49~cm C = × 49~cm Step 3: Simplify C = 49~cm 49~cm Area of a circle with radius 12 cm Step 1: Formula for area A = r^2 Step 2: Substitute r = 12~cm A = (12~cm)^2 Step 3: Simplify A = × 144~cm^2 A = 144~cm^2 144~cm^2