Question

Some help plsss
Point K has distance 15cm from the vertexes of a triangle ABC.BC = 8cm and m (BAC) = 30 degrees, Find the distance from K to the plan of the triangle ...

Answer 1

which is the vertex ? A or B or C ?

Answer 2

it has the same distance from all the 3 vertexes =15

Answer 3

oh sry my bad

Answer 4

it's ok...can u help me?

Answer 5

what is meant by the plan of the triangle ?

Answer 6

the plan where the triangle is....

Answer 7

hmm..let me see if i can draw it

Answer 8

well i already solved the triangle

Answer 9

u should know that KO is perpendicular with the plan of triangle and i guess it has to do with a circle...but idk wht circle it is

Answer 10

so i guess i can help if i know what kind of plan your problem means

Answer 11

see my attach. maybe it'll help :)

Answer 12

lmao thats a prism :)

Answer 13

Hey...come on...ofc would be a prism if u joined the points..wht did ya think????? :P:P

Answer 14

i thought a triangle :P

Answer 15

Lol :D:D ...how abt now tht u got the pic...do u think u can solve it?
Ps:I'm not 100% sure that O is in there

Answer 16

idk honestly are u sure its talking about a prism ?

Answer 17

:@@@@ Nooo!!!!!....
U've never solved this kind of problem in geometry?
But's ok :) thnx 4 trying anyway :):)

Answer 18

cause there is infinite values of regular distances to the plan that u showed

Answer 19

Nooo....how infinite?

Answer 20

unless it asked to find the perp. distance aka the shortest dist (and it didnt)

Answer 21

Hmmm it asks to find the perpendicular...KO is perpendicular with the triangle's plan...so it asks tht...

Answer 22

don'tgot the question, is that a pyramid or triangle??

Answer 23

cant solve sry

Answer 24

it's ok :):) I'll ask some1 else..thnx a loot 4 trying though :):):)
A prism Korcan

Answer 25

u say I am a prism??

Answer 26

Huh? U asked if it was a triangle or a pyramid and i said it is a prism!!!! :P

Answer 27

ok let me have a look ^^

Answer 28

just use pisagor...

Answer 29

And i can't draw it on to my notebook :P its hard to draw an triangle prish lol...

Answer 30

u can't draw it????? :P:P C'mon..don't b mean..I've seen wht u can do remember???????? :P:P

Answer 31

yes u saw but did u see any triangle prism on my draws?? :P

Answer 32

Hahahhaha :P:P:P Well there's always a 1st time...so.....

Answer 33

But its hard!!

Answer 34

How did u draw it? Tht's not hard...just use imagination....

Answer 35

wekk ş draw one but in tthat k was under the ABC triangle :P

Answer 36

kk...it'll b the same :P:P:P

Answer 37

:P
Butt its really HARd to draw !!! :((

Answer 38

Lool :P:P:P
Ok...4get it :P:P:P

Answer 39

ok ^^

Answer 40

i am good at drawing^3D pics... but can't draw it with pencil ^^ betteri n comp

Answer 41

:P:P:P

Answer 42

hmmm some one can solve this yet ?

Answer 43

i'm on it, working will giv u the answer :)

Answer 44

hope so cause i couldnt solve it either

Answer 45

hmmm dont u believe that since KA = KB = KC then OA = OB = OC ?

Answer 46

Yea i got a friend he's a genius :):):) Is just tht he's not online 4 now :):)

Answer 47

yea u see in the post above i told u tht it has to do with a circle....so u r thinking the same right?

Answer 48

@brackett Thnx :)

Answer 49

well yes and another thing

Answer 50

for OB = OC = OB aint AC = AB ?

Answer 51

basically consider a sphere of radius 15 , passing through the vertices of the triangle. u need to find the distance of the centre of the sphere from the plane of the triangle :)

Answer 52

Yea..tht's wht i thought Brackett but still i can't solve it...how abt the angle=30 given? where to use it?

Answer 53

ok solution is KO = 12.689
Like bnb said since KA=KB=KC then OA=OB=OC
This divides triangle ABC into 3 isosceles triangles
where each isosceles triangle has 2 equal bottom angles, which are A,B,C split into 2
I labeled them accordingly:
mA = x+y
mB = y+z
mC = x+z
ex: the triangle BOC with 8 as its base has angles z
Now the sum of these angles equal 180
2x+2y+2z = 180
x+y+z = 90
x+y = 30, given mA=30
30+z = 90
z=60
thus triangle BOC is equilateral and all sides are 8
OA=OB=OC = 8
Now look at right triangle KOA
OA=8, KA=15
KO = sqrt(15^2 - 8^2) = 12.689

Answer 54

this took me awhile, geometry ugh .. :)

Answer 55

dumbcow: that was stud :) easy proof i used vectors :)

Answer 56

Woooooooooow!!! It took me all morning and i couldn't solve it at all...Thnx a looooot :):):)
Thank u all 4 trying :):)

Answer 57

your welcome

Answer 58

^_^

Answer 59

good one

Answer 60

I got 10 problems similar to this...but thnx God i know how to solve the other 9 :))