Question

I don't understand these. I study and study, and still don't get it... Can someone please explain them to me and help me get the answers?

Answer 1

what's the sum of angles inside a triangle?

Answer 2

For the first one, it would be fd=ed

Answer 3

@Hezekieli 180.

Answer 4

so on the 1, what's the missing angle?

Answer 5

@Hezekieli 61.

Answer 6

now that you know all the angles, what can you say about the lengths of the sides?

Answer 7

@Hezekieli They aren't all equal.

Answer 8

but are some of them?

Answer 9

is the triangle symmetrical in some way?

Answer 10

yes. the two sides. So it is fd=ed

Answer 11

:)
then on to 2. what can you say about the sides and symmetry of the triangle?

Answer 12

Thank you! For 2, I got 14 becuase i set the bottom angles equal to eachother.
But, the 2 sides are longer then the base.

Answer 13

no problem. Happy to see you solve them by yourself :P

Answer 14

I'm just scared I'm doing it wronge!! I have a freagin D- in geometry and HAVE to bring up to an A by december 14th! So I'm like panicked....

Answer 15

So is 14 right?? lol

Answer 16

yeah, 14 is correct.
Have you drawn the 3? You get what equilateral means to the angles? What can you say about the lengths of the sides?

Answer 17

All the sides are equal...

Answer 18

So getting x = 5.. all the side are 30 inches?!?! :D

Answer 19

bravo :)

Answer 20

wooo!! lol I'm gonna draw out 3 now...

Answer 21

**4

Answer 22

I have to use translator for words like "equilateral" and "isosceles" :P

Answer 23

I hate math terms! lol
Ok, I drew it out... I can't set 4x -3 equal to x -3 because x-3 + something is suppose to equal 4x-3 right?

Answer 24

yeah, they are not quick to learn and now I have to learn them in second language. o.O
and actually I'm not familiar with the markings used in 4... :S

Answer 25

Ohh...
Well, it would translate into -
In triangel ABC, AB = CB,
the measure of ABC = 4x-3,
& the measure of CAB = x-3.

What is the measure of ACB?

Answer 26

** line AB = line CB
** the measure of ANGLE ABC
** the measure of ANGLE CAB
** the measure of ANGLE ACB

Answer 27

did you draw it already?

Answer 28

Yep.

Answer 29

well, as the AB = CB, can you say something about the angles?

Answer 30

Wel they would be congruent...

Answer 31

so. some of the angles are same right? but propably not all? can you make some kind of equation remembering that sum of all three angles is 180?

Answer 32

180 - ? equals somthing that is divisble by 2, evenly... like that? lol

Answer 33

looking at the picture, do you know which of the angles are the same?

Answer 34

the bottom ones meeting the base.

Answer 35

so you have some kind of expression (is that the right word?) for all three angles?

Answer 36

Um well, 2 congruent sides are called "legs" and the bottom is the base...
Where the 2 legs meet is the vertex angle..

Answer 37

you went on to 5? :o I was still helping with 4 :P

Answer 38

No I didn't lol! I was explain in what the "expressions" were like u asked! lol

Answer 39

:D asking again if you drew the pic? :P and if you have expression for the measure of ACB?

Answer 40

I drew the pic! lol and I know that two of the sides are equal, and plugging in 31.5 I got those two + 130 = 180, So I think the answer would be 135.

Answer 41

**31.5

Answer 42

heh. so did you understand how you came up with that answer? :) it's not always clear if you are given 4 choices and you happen to stumble to one of them :P

Answer 43

No.. I just stumbled on one of them... ahhahh!

Answer 44

can you make an equation where there's just 180 on the other side of = ?

Answer 45

um... Well I believe
(4x-3) + (x-3) + (?) = 180
idk.... lol

Answer 46

look at your picture and figure out if you know the expression for "?"

Answer 47

113

Answer 48

the vertex angle is 4x - 3, right?
and one of the base angles is x - 3?
and the base angles are the same...?

Answer 49

oh yeah yeah! true!!
So (x-3) + (x-3) + (4x-3) = 180

Answer 50

there you go :)

Answer 51

Ok ok! got ya! Thanks! Jeez, I feel so stupid sometimes...
Actually, i think it's just how it's taught... like they try and make it as confusing as the can.

Answer 52

yeah, when you get those confusing ones, you get them all. If you can't solve it easily in your mind, draw a picture and look for some cue :)

Answer 53

True true. Thank you SO SO SO MUCH!!!!!!!!!!!!!!!!!!