Question

Math help pls

Answer 1

@Narad

Answer 2

The volume is
\[V=1/3*a*h\]
Here you have to find the height ?
the slant height is given

Answer 3

this drawn will help you calcule easy the length of VO

Answer 4

@Narad how do I find the height?

Answer 5

By the Pythagoras theorem
\[c^2=a^2+b^2\]

Answer 6

@Narad would 25^2 be c^2?

Answer 7

Yes

Answer 8

25^2=625, whats a^2 and b^2?

Answer 9

Look at the triangle VOF

Answer 10

14^2+14^2=392

Answer 11

no, OF=?

Answer 12

I assume you are talking about the image I attached, the only other numbers are 14

Answer 13

yes, look at the attached image

Answer 14

OF=48?

Answer 15

How do you get 48?

Answer 16

14+14=48

Answer 17

are you sure?

Answer 18

I think so(I'm not actually sure about anything since I dont now how to solve this

Answer 19

you are adding 2 numbers, 14+14=???

Answer 20

@dude b^2=14^2=196?

Answer 21

@Narad , I did 14^2=196=base, then I did 25^2-14^2=429, then I multiplied 1/3*(429)*(196), ad got 1217, which is not an option, what am I doing wrong?

Answer 22

\(\color{#0cbb34}{\text{Originally Posted by}}\)
14+14=48
\(\color{#0cbb34}{\text{End of Quote}}\)

You added wrong

14+14 = 28, not 48 o-o

Answer 23

oh, sorry about that
but what am I doing wrong now?

Answer 24

So to find the volume

\(V=\large \frac13\)\(base \times height\)

b = base (area of the square)= 14*14
h = height (height itself)= 28

\(V=\large \frac13\)\(bh\)
\(V=\frac{1}{3}(196)(28)\)

\(V=\large\frac {5488}{3}\)\(= 1829.33... \approx 1829.33\)

Answer 25

Narad wrote a as "base area" but the idea is still the same

Answer 26

1633 m3


1568 m3


1485 m3


1509 m3

Answer 27

^^those are the options

Answer 28

Ah that makes more sense

I got the height wrong


Didnt read up whoops

Answer 29

So triangle VOF forms a triangle

OF is just half of the side length

So



(Basically what it now looks like, and now I guess you can solve pythagorean theorem more easier)

Answer 30

@dude is the height 576?

Answer 31

No o-o
h is a leg, 25 is the hypotenuse
\(h^2+7^2=25^2\)

\(h^2+49=625\)

\(h^2=576\)

\(h=24\)

Answer 32

@dude 1568?

Answer 33

Ya