Question

if a=13,b=14,c=15 then r=? ​

Answer 1

Step-by-step explanation:

$r = \frac{a + b - c}{2}$

$here \: \\ a = 13 \\ b = 14 \\ c = 15$

$r = \frac{13 + 14 - 15}{2}$

$r = \frac{27 - 15}{2}$

$r = \frac{12}{2}$

$r = 6$

Thanks ❤

#kanika...

Answer 2

b2-4ac

(14)2- 4×13×15

196-780

-584less then 0