Curry
  • Curry
ABC is a triangle with sides AB = 6m, BC =8m, and AC = 10m. A line k in the plane of the triangle ABC moves along the segment AC at the rate of 1cm per sec. The line starts at A and ends at C and is always perpendicular to AC. 1. How long does it take the line to reach the point B? 2. How long does it take the line to bisect the area of the triangle? 3. What is the area of the region that the line sweeps in its movement after 6min 45 sec? 4.What is the area of the region that the line sweeps at any give moment from the start of its movement?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Curry
  • Curry
i solved the first one and i got 6 minutes
anonymous
  • anonymous
ya that one i got also 6
Curry
  • Curry
number 2 is really killing me

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More answers

anonymous
  • anonymous
sorry i suck at geometry. I dont even remeber learning this stuff in hs
Curry
  • Curry
this is part of precalc trust me it looks simple but it is hard
anonymous
  • anonymous
lol but it really falls under geometry i think
Curry
  • Curry
lol where are all the genuises
anonymous
  • anonymous
Hey sal
anonymous
  • anonymous
I dont fall under the category of genius :D
anonymous
  • anonymous
hey rld, haha me neither... and what a weird question. what course is this for?
anonymous
  • anonymous
pre calc
Curry
  • Curry
precalc
anonymous
  • anonymous
ok so first thing is, did you do any work?
Curry
  • Curry
its to make u use skills that u have already acquired through critical thinking
anonymous
  • anonymous
cool never took such a course
Curry
  • Curry
wat do u mean work i solved the first part but no matterf what i do i cant solve 2
anonymous
  • anonymous
ok how did you get 6 minutes?
anonymous
  • anonymous
lol ya cuz what is the height of the triangle
anonymous
  • anonymous
ok so it is a right angle triangle, you can tell from the dimension. 6, 8, 10
anonymous
  • anonymous
line K, is always perpendicular to AC which is the HYP. of the right angle triangle and is 10 meters.
anonymous
  • anonymous
sal to the rescue
Curry
  • Curry
i need 2 i found 3
anonymous
  • anonymous
ok, you sure part 1 and 3 are right?
Curry
  • Curry
well check my work for 3 i got 41/84 as the area
Curry
  • Curry
41.84 as the area
Curry
  • Curry
not 41/84
Curry
  • Curry
not 41/84
anonymous
  • anonymous
yeh 1 is correct.. it is 6 minutes
Curry
  • Curry
3?
Curry
  • Curry
wait nvm
Curry
  • Curry
its 10.7241 as the area check that answer
anonymous
  • anonymous
ok so for 3, you have 6*60+45=405seconds, and times cm per second you get 405 cm convert to meters. 4.05 meters, (6^2-4.05^2)^1/2= you get the third side= 4.427 area of triangle= 0.5*4.426*4.05=8.96
Curry
  • Curry
thats wrong cause its a trap after 3.96 so if its 4.05 its a trapu cant use traingle formua
Curry
  • Curry
trapezoiod
anonymous
  • anonymous
ohhh haha, really is it like that?
anonymous
  • anonymous
totally missed that
Curry
  • Curry
ye
anonymous
  • anonymous
then for 2, i think you have to relate the triangle at the top, with the one at the bottom interms of areas, and in terms of lengths and solve the 2 equations with 2 unknowns
anonymous
  • anonymous
iight, i g2g hopefully you can figure it out on your own, if not maybe other ppl will be able to help but i gotta go. sorry

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