3 years ago

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>

You might be interested in

The table shows the transportation method of employees at a certain company. What percent of the total amount of employees drive

Aleks04 [339]

Answer:

about 0.38 %

Step-by-step explanation:

Total = 1,400 Employees

Those who drive a bus = 530

530 / 1,400 = 0.378571428571429

round up = about 0.38 %

3 0

2 years ago

What is 9 kilometers per hour converted into feet per minute?

gogolik [260]

The answer is 492.126 :) Hope it helps!

3 0

3 years ago

The measure of an angle is 8 degrees less than three times the measure of the angle's supplement. Find the measure of the angle.

Liula [17]

Answer:

262

Step-by-step explanation:

3(90) - 8 = x

270-8 = x

262 = x

4 0

3 years ago

The difference of 9 and the quotient of the number t and 6 is 5

zimovet [89]

The answer should be t=-24

8 0

2 years ago

Find a formula for a function f(x,y,z) whose level surface f=81 is a sphere of radius 9, centered at the origin.

Mrrafil [7]

$81(9 \times 8 = 72 + 9) = 81$

4 0

3 years ago