Question

27.
a. Find the value of each variable to the nearest tenth.
b. Find the perimeter of the triangle to the nearest tenth.

Answer 1

How do I download the attachment for this? I really need help fast. So please help me.

Answer 2

under the box where you typed: "How do I download the attachment for this? I really need help fast. So please help me."

there is an attach file button

Answer 3

Here is the attachment:

Answer 4

How can I work this out? Somebody help please.

Answer 5

one angle is 90 and another is 55 - that means the remaining angle is.....

Answer 6

these are te options:
a = 30, c = 36.6, perimeter = 87.6
a = 36.6, c = 30, perimeter = 87.6
a = 36.6, c = 17.2, perimeter = 74.8
a = 17.2, c = 36.6, perimeter = 74.8

Answer 7

hello?

Answer 8

bummer they don't even ask for that last angle!

sorry phone

Answer 9

what?

Answer 10

what do you mean? you cant help me?

Answer 11

im back - so we know that the 55 angle is equal to tan(55) = opp/adj

or tan(55)= a/21 that should give us an answer for side a

Answer 12

okay? next

Answer 13

whats the next step?

Answer 14

well, how do I work this out?: tan(55) = a/21?

Answer 15

whats c, and the perimeter then?

Answer 16

\[a ^{2}+b ^{2}=c ^{2}\]

Answer 17

21^2 + b^2 = c^2 is this right?

Answer 18

yes and use the answer from tan(55) = a/21 as your b

Answer 19

tan(55) is just a number - will have to get it from your calculator

Answer 20

tan(55) = 1.4 right?

Answer 21

indeed so 1.4 = b/21 multiply both side by 21 to get?

Answer 22

so, is it 21^2 + 1.4^2 = c^2?

Answer 23

not yet, 1.4 isnt the length it is the tangent of that angle that we are using to find the length

Answer 24

umm.... is it 29.4 = b?

Answer 25

if you used more decimals for tan(55) it is closer to 30 but yes

Answer 26

so 30^2 + 21^2 = c^2 and you will have all your sides

Answer 27

900 + 441 = c^2

Answer 28

good so far

Answer 29

1,341 = c^2
36.62 = c
right?

Answer 30

that is what I got

broganleab is asking almost the same question

Answer 31

so look at my options that i have listed. Wouldn't the answer be A? The first option.

Answer 32

or B?

Answer 33

the hypottinuse hypatonous hippotanoose ...c has to be longer than either a or b

Answer 34

http://openstudy.com/updates/51659016e4b066fca66105e1 has a better explanation for triangles than mine...if you want to check it out

Answer 35

Option A or B?

Answer 36

a

Answer 37

Thanks so much!

Answer 38

=)
dont forget to award medals ---cause its a competition or something

Answer 39

okay