Another Trig question

Shmoe · 01-19-2003, 09:01 PM

Trig Homework, And I dont have a clue on this stuff

I think if i can get this question, ill be able to get them all though.

Three people are playing catch. They are standing 8m, 11m, and 12m apart.

a) Prove whether or not the triangle they form is a right triangle

b) Find all three angles in the triangle

I know everyone hates this kind of post

But im stuck on this question for some reason..

CrazyScottishBiker · 01-19-2003, 09:08 PM

a) if 8squared + 11 squared = 12squared then it is a right angled triangle

b) 8/six = 11/siny = 12/sinz
OR u may have to use the cos rule

i think i am not sure on b...gd luk mate

01-19-2003, 10:01 PM

the the triangle does not have a right angle...the angles are 40degrees, 63degrees, and 77degrees
using the formulas
b

willmtbike4food · 01-20-2003, 01:00 AM

tony took the words out of my mouth, except for the "i love math" part...

Norman · 01-20-2003, 01:26 AM

Quote:

Originally posted by Tony G
btw i love math and i can do quiet a lot w/ it so dont be aftraid to come to me again

That scares me. To each his own I suppose.

Shmoe · 01-20-2003, 02:08 AM

Alright, I do h ave another question

Two buildings are 40m apart. The angle of inclination from the ground floor of the shorter to the roof of the taller building is 74. The angle of depression from the roof of the taller builfing to theroof of the shorter building is 26. Calculate the height of both buildings..

Propagandhi · 01-20-2003, 02:11 AM

[QUOTE]Originally posted by Tony G
[B]the the triangle does not have a right angle...the angles are 40degrees, 63degrees, and 77degrees
using the formulas
b

willmtbike4food · 01-20-2003, 02:14 AM

shmoe - use right triangles - you know all the angles (one is 74, 16, 90, while the other is 64, 26, 90).

you know one of the lengths, so the other length's can be found from that original ( 40m ).

maybe you already knew this, maybe you didn't, its a little help though, but no answer

01-19-2003, 09:01 PM	#1
Shmoe MTB rider Join Date: Nov 2002 Location: Lethbridge/Calgary Posts: 2,022 Rep Power: 49	Another Trig question Trig Homework, And I dont have a clue on this stuff I think if i can get this question, ill be able to get them all though. Three people are playing catch. They are standing 8m, 11m, and 12m apart. a) Prove whether or not the triangle they form is a right triangle b) Find all three angles in the triangle I know everyone hates this kind of post But im stuck on this question for some reason..

01-19-2003, 09:08 PM	#2
CrazyScottishBiker .243 is now finished!!!!! Join Date: Nov 2002 Location: Glasgow, Scotland Posts: 274 Rep Power: 11	a) if 8squared + 11 squared = 12squared then it is a right angled triangle b) 8/six = 11/siny = 12/sinz OR u may have to use the cos rule i think i am not sure on b...gd luk mate __________________ The shore style is making its move! Ride On. rideharddieyoung@hotmail.com

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01-19-2003, 10:01 PM	#3
Tony G Guest Posts: n/a	the the triangle does not have a right angle...the angles are 40degrees, 63degrees, and 77degrees using the formulas b

01-20-2003, 01:00 AM	#4
willmtbike4food Devinci Chester Join Date: Nov 2002 Location: usa Posts: 979 Rep Power: 206	tony took the words out of my mouth, except for the "i love math" part...

01-20-2003, 02:08 AM	#6
Shmoe MTB rider Join Date: Nov 2002 Location: Lethbridge/Calgary Posts: 2,022 Rep Power: 49	Alright, I do h ave another question Two buildings are 40m apart. The angle of inclination from the ground floor of the shorter to the roof of the taller building is 74. The angle of depression from the roof of the taller builfing to theroof of the shorter building is 26. Calculate the height of both buildings..

01-20-2003, 02:11 AM	#7
Propagandhi U.T.F Join Date: Nov 2002 Location: Langley Posts: 2,557 Rep Power: 0	[QUOTE]Originally posted by Tony G [B]the the triangle does not have a right angle...the angles are 40degrees, 63degrees, and 77degrees using the formulas b

01-20-2003, 02:14 AM	#8
willmtbike4food Devinci Chester Join Date: Nov 2002 Location: usa Posts: 979 Rep Power: 206	shmoe - use right triangles - you know all the angles (one is 74, 16, 90, while the other is 64, 26, 90). you know one of the lengths, so the other length's can be found from that original ( 40m ). maybe you already knew this, maybe you didn't, its a little help though, but no answer