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Mathematics 8 Online
theyadoreshayyy:

help pleaseeee

theyadoreshayyy:

snowflake0531:

We can find the lengths of the two different sides first, add them together, and multiply it by two Can you find the lengths of the sides?

QuestionCoveBot:

@Tranquility - move to Mathematics.

theyadoreshayyy:

ummm i thing one side is 4, am i correct ?

snowflake0531:

nope do you know the pythagorean theorem?

theyadoreshayyy:

a2 + b2 =c2 ?

snowflake0531:

Yes, so Let's first look at hte distance AD how much is 'a' and 'b'

theyadoreshayyy:

2 ?

snowflake0531:

No, |dw:1618585241039:dw| do you see how i added the triangle? so what tare the sides, how much does it move up, how much is the side

theyadoreshayyy:

im confused, which side are we talking about, and what moved up ?

snowflake0531:

We have a parallelogram... we look at the side, and put that as a hypotenuse, so i added to more sides, you do see that right? so now its a triangle, so what are the lengths of the sides

theyadoreshayyy:

idk cause there is no graph on it

snowflake0531:

... then look at the graph

theyadoreshayyy:

7 ?

snowflake0531:

What are each of hte sides, I don't want them added together

theyadoreshayyy:

ohhhhhh okay

theyadoreshayyy:

parallelogram- 2 triangle-3

snowflake0531:

.... what?

theyadoreshayyy:

im sorrry, im still confused on this

snowflake0531:

what are teh lengths

1 attachment
theyadoreshayyy:

4

theyadoreshayyy:

and 2

snowflake0531:

how the literal hell is it 2...

snowflake0531:

recount... one line is one, 4 and what

theyadoreshayyy:

3? thats for the triangle right

snowflake0531:

yes.... so we have 3 and 4 \[3^2 + 4^2 = x^2\] what is x

theyadoreshayyy:

144 ?

snowflake0531:

.. how did you get that

theyadoreshayyy:

i did 3 times 3 and got 9, then i did 4 times 4 and got 16,

theyadoreshayyy:

4 times 16 is 144

theyadoreshayyy:

i mean 9 times 16

snowflake0531:

.... I specifically wrote + as in adding

theyadoreshayyy:

ohhhh okay okay

theyadoreshayyy:

sooo, it wuld be 9+ 16 =25

snowflake0531:

yes so 25 = x^2 so what is x

theyadoreshayyy:

kay, before i look stupid, would i do 25 + 25, or 25*25

theyadoreshayyy:

oml

snowflake0531:

\[25 = x^2\] \[\sqrt25 = \sqrt x^2\] \[x=5\]

theyadoreshayyy:

but that would be wrong because he answer is supposed to be a decimal

theyadoreshayyy:

the *

snowflake0531:

ik.... that's one side

theyadoreshayyy:

im sorry, im not really good at math, its my hardest subject

snowflake0531:

So now you need to find the other side what are the 2 lengths

1 attachment
theyadoreshayyy:

2 and 2

snowflake0531:

So 2^2 + 2^2 = x^2 Simplify

theyadoreshayyy:

8

snowflake0531:

So x^2 = 8 what is x

theyadoreshayyy:

16

snowflake0531:

....

snowflake0531:

do the same thing i just did... earlier

theyadoreshayyy:

how ?

snowflake0531:

\[8 = x^2\] \[x = \sqrt8\]

snowflake0531:

So first ad sqrt8 + 5, and then multiply that by 2

theyadoreshayyy:

26

snowflake0531:

.... SQRT5

theyadoreshayyy:

?

theyadoreshayyy:

whats that

snowflake0531:

do you not know wha tsquare root is....

theyadoreshayyy:

ohhh i know what square root is, just not the way yu wrote it

snowflake0531:

so what'd you get

theyadoreshayyy:

2.23

snowflake0531:

So what is that.... plus 5... then multipleid by 2

theyadoreshayyy:

12.23

snowflake0531:

.... no...

theyadoreshayyy:

14.46 ?

snowflake0531:

....no.... (sqrt8 + 5)2 = 15.7

theyadoreshayyy:

ohhhh i didnt put it in parentheses

theyadoreshayyy:

thank you

snowflake0531:

yw

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