Here's the question you clicked on:

## cuzzin Right triangle: Find AB if BC=3, BD=5, and AD=7 2 years ago 2 years ago

• This Question is Closed
1. cuzzin

2. AccessDenied

Well, you know two sides of the inner right triangle BCD and AD. You could use Pythagorean theorem to find the third side of the first triangle, and that's one segment of the leg in the larger right triangle. Then just add them together and use Pythagorean theorem again...

3. SUROJ

|dw:1333244473241:dw|

4. GChamon

5^2=3^2+4^2 DC=4 ad+dc=ac=4+7=11 ab=sqrt(121+9) ab=sqrt(130)

5. SUROJ

first find DC using $h ^{2}=p ^{2}+b ^{2}$ AND then find AB considering ABC right angled triangle

6. GChamon

$AB=5*\sqrt 26$

7. cuzzin

Great, thanks guys.