What is the circumference of the semicircle?

Mathematics

2 answers:

Zina [86]3 years ago

8 0

Answer:

$12.56m$

<h3>4th answer is correct.</h3>

Step-by-step explanation:

$\frac{180}{360} \times 2\pi \: r \\ \frac{1}{2} \times 2 \times \pi \times 4 \\ = 12.56m$

ludmilkaskok [199]3 years ago

3 0

<h2>we know the circumference of circle which </h2><h2>2pir</h2><h2 /><h2>then circumference of semi circle is </h2><h2>2pir×1/2</h2><h2 /><h2>where 2 and 2 get cancel </h2><h2>and we are left with pir</h2><h2>so.. pi4</h2><h2>=12.56</h2>

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Alex_Xolod [135]

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