Trying to find Base length of triangle

[sms910]

Need anwswer to give to my boss. We have triangle, need to find base length. Height is 46 and diagnal is 130. I tried the a^2 + b^2 = c^2 but not sure is its right? Please help! Thanks.

 

[soroban]

Hello, sms910!

What is a "diagonal" of a triangle?

 

[Denis]

Probably means one leg of right triangle = 46, hypotenuse = 130
If so: SQRT(130^2 - 46^2)