3 years ago

Work out the perimeter of this semicircle. take pi to be 3.142

Mathematics

2 answers:

Vanyuwa [196]3 years ago

8 0

Answer:

P = 25.71 cm

Step-by-step explanation:

Perimeter of semicircle = πD/2

Where D=10 cm

P = (3.142)(10)/2

P = (3.142)(5)

P = 15.71 cm

Complete Perimeter of Semicircle = P + Diameter

= 15.71 + 10

= 25.71 cm

Ber [7]3 years ago

8 0

Answer:

25.71cm

Step-by-step explanation:

3.142 x 10 = 31.42

31.42/2 = 15.71 (half of the circumference)

15.71 + 10(the diameter).

= 25.71cm

You might be interested in

The polygons are similar. Find the missing side length. NO LINKS!!!!

timurjin [86]

Answer:

CD = 27

Step-by-step explanation:

Given the triangles are similar then the ratios of corresponding sided are equal, that is

$\frac{CD}{KD}$ = $\frac{CB}{KL}$ , substitute values

$\frac{CD}{9}$ = $\frac{30}{10}$ = 3 ( multiply both sides by 9 )

CD = 27

7 0

3 years ago

22 more than four times a number is less than 82 <br><br> (Inequality equation)

Tanzania [10]

22^4c-82. Is the equation I think you are looking for.

5 0

3 years ago

Which of the following equations was used to graph the line shown?

anastassius [24]

The answer is B !!!!!

3 0

3 years ago

Read 2 more answers

What is the coefficient of q<br> (2/3q-3/4) and -1/6q-r)

kirza4 [7]

The coefficient in (2/3q-3/4) is 2/3 and in (-1/6q-r) is -1/6

4 0

3 years ago

. mrs. opsahl drove 399 miles on 14 gallons of gas. how many miles per gallon did her car get? 0.27 miles per gallon 28.5 miles

Dennis_Churaev [7]

Answer:

28.5 miles per gallon

Step-by-step explanation:

399 miles / 14 gallons

= 28.5 miles/1 gallon

1 gallon per 28.5 miles

8 0

2 years ago

Work out the perimeter of this semicircle. take pi to be 3.142​

Work out the perimeter of this semicircle. take pi to be 3.142