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eroshea
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Plane A which contains an isosceles right triangle forms a dihedral angle of 60 degrees with another plane B. if the hypotenuse of the triangle lies in plane B and measures 8 in., find the distance from the vertex of the right angle to plane B, and the length of the projection of each leg of the triangle on plane B.
 2 years ago
 2 years ago
eroshea Group Title
Plane A which contains an isosceles right triangle forms a dihedral angle of 60 degrees with another plane B. if the hypotenuse of the triangle lies in plane B and measures 8 in., find the distance from the vertex of the right angle to plane B, and the length of the projection of each leg of the triangle on plane B.
 2 years ago
 2 years ago

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Shadowys Group TitleBest ResponseYou've already chosen the best response.1
So, it's dw:1353327509163:dw and dw:1353327558921:dw Now, first we'll need to find the length of the hypotenuse and vertex of right angle. That's done by using the tan 45. Now, we'll find the distance from the vertex of the right angle to plane B. Since we have the length, which will be \(4 \tan 45^o\), we'll apply the sine to find that length. It will be dw:1353327784152:dw i.e. (4 tan 45)(sin 60)
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
Do you need further help?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
wait.. i'm going to analyze it first
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
find the distance from the vertex of the right angle to plane B = 4 square root of 3 length of the projection of each leg of the triangle on plane B = 8 is this correct?? regardless of the unit
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
the first might be 2 sqrt 3 the second..hmm can i see your workings?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
aaaawwww.. i was wrong.... what i did was the 306090 angles, but it should be 454590.. right?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
why 2 sqrt 3 ?? i got 2 sqrt 2
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
4 tan 45 = 4 4 sin 60 = 2 sqrt 3?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
i don't get it T.T
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
lol for the first I find the length of d dw:1353329595834:dw to do this, i need dw:1353329616295:dw
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
please explain me this one "Plane A which contains an isosceles right triangle forms a dihedral angle of 60 degrees with another plane B." it's kinda confusing
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
It's the first pic. It means that the plane A is at angle of 60 with B
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
And on the plane A there is a isoscles right angle triangle.
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
dw:1353387385535:dw is it like this?? sorry for the drawing
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
Nice drawing. dw:1353330325620:dw
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
is that the right position of the isosceles triangle?
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
Yup. Since the "the hypotenuse of the triangle lies in plane B"
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
so where to put the imaginary line for this," from the vertex of the right angle to plane B" and "the length of the projection of each leg of the triangle on plane B."
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
and where is the 60 degree angle?? sorry if i have so many questions
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353330869441:dw lol dun worry about it
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353330892217:dw
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
where does projection of each leg of the triangle refers to??
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
I was thinking that they refer to the same line actually...because the triangles projection is really that point.
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
atlast i got it.. ahhaa.. thanks for the help!
 2 years ago
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