cjcj wrote:

Triangle ABC is a right triangle. D is the midpoint of hypotenuse AC. BE is tangent to DC. What is DE?

1) AB=12

2) BE=9

Can someone please help me with this question??

Thank you!!

Hi,

i believe the answer should be C....

the answer cannot be A,B or D as a single value cannot deduce any other value here..

in any right triangle with two sides given, where two sides could be any altitude or one side, two sides etc... most of the values can be deduced..

here too, all three sides can be found with given two values.. hypotenuse comes out as a negative value or 36..

so it is 36, lly other values can be deuced...