In the triangle ABC, AB 2 root number 3, AC 2, BC side height is root number 3, find the length of B

Because in the triangle ABC, ab=2, bc=2 times the root number 3, AC=4, the triangle abc is a right-angled open-angle, right-angled angle B (because ab 2

BC 2 = AC 2), angle A = 60 degrees (BC = 3AB) because of FD BC, so FD AB, easy to prove af = de (or ae = df), [here we use the number of sides of a right triangle of 60 degrees and the number of edges, you can try it yourself, for example, af = fd, fd = cf 2, cd = 3fd, and then you can, remember that there is still fd ab this bar can be used].

So aedf is a parallelogram, because ae=ed, so the parallelogram aedf is rhombus, so, ad= 3ae, so ad=4 3 3,

There are two scenarios.

Solution: Solution: The height on the edge of BC intersects with BC at point H

BH=3 In the right triangle AHC, there is CH*CH=AC*AC-AH*AHCH*CH=2*2- root number 3*root number 3

ch*ch=1

ch=1bc=bh+ch=3+1=4

For example, the height on the edge of BC intersects the extension line of BC at point H

then there is bc=bh-ch=3-1=2

A: The BC length may be 4 or 2

Hope it helps, hope, thank you.

Consider an acute and obtuse triangle, and make a triangle with the height of the ab and ac sides, then the length of ac=2 can be on both sides of the height, so there are two BCs of different lengths

Summary. Okay pro.

It is known that in the triangle ABC abc ab = 1, bc is equal to the root number 3, and ac is equal to the root number 2, then the height on the side of bc is.

Can it be faster?

Okay pro. Excuse me, dear.

I'm sorry dear, I read the wrong <> title

This is a draft, and it's tougher.

Now recount.

That's the answer.

I've been waiting for a long time.

A = 45 degrees, c = 75 degrees.

c=ab=√3

then by the sinusoidal theorem.

a/sina=c/sinc

a=csin45/sin75

3*( Xiaotong stupid wheel limb 2 2) [6+ 2) 4] so coincidental bc=a=3- 3

Summary. Dear, hello, BC's length is 5, I hope the above will help you, if you still have questions, please continue to ask.

In the triangle ABC, ab=4, ac=3, a=2b, find the length of bc.

Dear, hello, BC's length is 5, I hope the above will help you, if you still have questions, please continue to ask.

What is the process?

Hello dear, using the hypothetical method, assuming that b is 30 degrees, this is a right triangle and then using the Pythagorean theorem can come out.

How could it be right.

A to make a triangle of high ah

Let ah=h, then ab=2h

ac=(root number2) h

ab-ac=2 - root number 2

h=1bc=bh+hc=(root number 3) 1