calculate the largest angle of a triangle in which one angle is eight times each of the others.
nedd help...
Hello hi00000If the smaller angles are both $\displaystyle x^o$, then the largest angle is $\displaystyle 8x^o$. So:
$\displaystyle x +x+8x =180$
$\displaystyle \Rightarrow 10x = 180$
$\displaystyle \Rightarrow x = 18$
So the largest angle is $\displaystyle 8\times 18 = 144^o$.
Grandad