Sara63
Sara63 Sara63
  • 04-03-2015
  • Mathematics
contestada

(link to the maths question) can anyone help?

link to the maths question can anyone help class=
link to the maths question can anyone help class=

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 04-03-2015
first one

20cm=diameter
perimiter of this one is (pi times radius^2)divided by 2+ 20

diameter=2radius
radius=diameter times 1/2
diameter=20
20/10=radius=10

3.14 times 10^2=314
314 times 1/2=157
157+20=177 cm
perimiter=177 cm
Answer Link

Otras preguntas

what do we call a part of the body with a special function?
Can I write an equation in point-slope form when having a slope of zero?
Tameron is driving 540 miles to college. If he drives at an average rate of 45 miles per hour, how many hours will it take him to get 3/4 of the way there?
Which component of skill-related fitness would most help a shot-putter increase the distance of his or her throw? -speed -balance -agility -power
50/7 as a mixed number
If Teresa's daughter is my daughter's mother, what am I to Teresa?
50/117 in simplest form
How do you graph y= -x+5
mary buys a reel of thread for sewing. There are 10 m of thread on the reel. she uses 210 cm. How much reel is left in cemtimeters
Expand and Simplify a. 2(x+y)+3(x+y) b. 5(x+y)+2(5x-y) c. 5(x+y)+3(2x-y) d. 3(2c+d)-2(4p-3) e. 4(2p+2q)-3(2p-q)