anonymous
  • anonymous
PLEASE HELP - In triangle ABC, A is a right angle and mB = 45°. Find BC. If your answer is not an integer, leave it in simplest radical form. The figure is not drawn to scale.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
12 ft 12 ft 24 ft 24 ft
anonymous
  • anonymous
@.Sam.
anonymous
  • anonymous
uh well do you know how a 45-45-90 triangle works?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
No...
anonymous
  • anonymous
Okay well you don't need that. Do you know how the pythagorean theorem works
anonymous
  • anonymous
Yeah, a^2+b^2=c^2
anonymous
  • anonymous
Okay well if mB = 45, and mA = 90, then you can use the fact that the angles of a triangle must add up to 180 degrees to find mC mC = 180-(90+45) = 45 Since mC = mB, triangle ABC is an isosceles triangle. So, AB = AC = 12. Now you can use Pythagorean Theorem to find BC AB^2 + AC^2 = BC^2 144 + 144 = BC^2 BC = 12sqrt(2)
anonymous
  • anonymous
Oh okay. See, I didn't know how to find the other side.
anonymous
  • anonymous
hmm? well does it make sense now. Would you like me to show you how a 45-45-90 triangle behaves?
anonymous
  • anonymous
Yeah, it kinda makes sense. And yeah, if it will help me understand better lol. Can I show you this other problem? It's sort of similar.
anonymous
  • anonymous
Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form. The figure is not drawn to scale.
anonymous
  • anonymous
okay I was trying to draw a 45-45-90 triangle but then I gave up here's a link http://www.atlantic.k12.ia.us/~period5/images/45-45-90_triangle.jpg um okay let me look at the next problem
anonymous
  • anonymous
yeah that's a 30-60-90 triangle, have you learned about those?
anonymous
  • anonymous
If not, then you can use pythagorean theorem again
anonymous
  • anonymous
I've learned about triangles, but I never learned about 30 60 90 or the other triangle.
anonymous
  • anonymous
I know the pythagorean Theorem.
anonymous
  • anonymous
okay well then just use pythagorean theorem. The triangles I'm referring to are just shortcuts. here's a link for a 30-60-90 triangle for future reference http://www.atlantic.k12.ia.us/~period5/images/30-60-90_triangle.jpg

Looking for something else?

Not the answer you are looking for? Search for more explanations.