Question

HEEEELLLP!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Determine the perimeter of the figure below. Enter your numerical answer only. Use 3.14 for pi and round your answer to the nearest hundredth.

Answer 2

http://i359.photobucket.com/albums/oo40/bvialpando1/1035810a-f0f1-4da9-9321-fa9f913592f0_zpsd3zlakg7.png

Answer 3

do u understand the concept?

Answer 4

same that is why i posted it do you know anyone who can help

Answer 5

@misssmartiez

Answer 6

Well, what we need to do is break the shape into familiar figures and then use the formulas we already know to find the solution. I see a semicircle, a trapezoid, and a triangle. Do you know the formulas to find the circumference of a circle and do you know about the p theorem?

Answer 7

pythagorean theorem*

Answer 8

ok well i know that here is half a circle and a triangle and some other shape

Answer 9

there*

Answer 10

Yep, that's right. Okay, I'll cheat for you just this time ;) To find the circumference, or area, of a semicircle we take the diameter and multiply it by pi, or in this case 3.14. So, we get aprox. 12.56. But, now we need to divide by two since we're dealing with a semicircle. 12.56 / 2 = 6.28. So, the circumference of the semicircle is 6.28. Does this make sense?

Answer 11

why do you divide it by 2

Answer 12

Because to find the area of ONE whole circle, we do d x pi, but we're dealing with HALF a circle. So in that case, we only need half the answer.

Answer 13

oh ok

Answer 14

:D Okay! Do you know about the pythagorean theorem?

Answer 15

kinda i dont exactly remember how to do it

Answer 16

Okay, I'll give you the run-down. We use the pythagorean theorem to find the hypotenuse of a right triangle, or the long diagonal side of a triangle with a 90 degree angle. We take the first straight line, or leg, multiply it by itself, then we add the second leg and multiply it by itself, and we get the hypotenuse times the hypotenuse, and we must find the square root of that. So, in an algebraic equation, it would look like this: (a x a) + (b x b) = (c x c) We can find length of a diagonal line with this. So, with this example we would need to find the length of the trapezoid side. Does this make sense?

Answer 17

https://www.mathsisfun.com/pythagoras.html

Answer 18

yes it makes sense, so your saying its a'2+b'2=c'2

Answer 19

i know the long side is 6

Answer 20

Actually, it's the square root of 6, so aprox. 2.44.

Answer 21

i think the other two are 3

Answer 22

We then multiply 2.44 x 2 because there are two sides. We then get 4.88. 4.88 + 6.28 (the semicircle) = 11.16. This is what we have so far.

Answer 23

ok

Answer 24

On to the sides of the triangle. We do practically the exact same thing. 3^2 + 1^2 = 10. sqrt (square root) 10 = 3.16. I'll leave the last step up to you. 3.16 + 11.16 = ...

Answer 25

Wait, 3.16 x 2 = 6.32. 6.32 + 11.16 = ...

Answer 26

oh pk

Answer 27

ok*

Answer 28

lol.

Answer 29

So, 6.32 + 11.16 = ...

Answer 30

that equals 17.38

Answer 31

Close, 17.48. But overall, great job! *Hands smart cookie*

Answer 32

thx :)

Answer 33

Of course @skittles_for_life6422! Oh, and remember, if I helped you in any way a fan and medal would be appreciated! :D

Answer 34

By the way, I became your fan. If you need any more help, feel free to ask a question and tag me! ^-^

Answer 35

thx so much actually after this question can you help me with three other confusing questions

Answer 36

Please do post your questions, but only one at a time.

Answer 37

ok

Answer 38

skittly me

Answer 39

Sure, just tag me! :)