$A$A$\left(-2,-1\right)$(−2,−1), $B$B$\left(0,0\right)$(0,0) and $C$C$\left(1,k\right)$(1,k) are the vertices of a right-angled triangle with right angle at $B$B.
Find the value of $k$k.
Find the area of the triangle.
Consider any right-angled triangle with a base of $b$b and a height of $h$h, placed in the coordinate plane as shown.
$ABCD$ABCD is a rhombus as shown on the number plane.
Given Line P: $y=-6x-4$y=−6x−4, Line Q: $y=\frac{x}{6}+6$y=x6+6, Line R: $y=-6x-1$y=−6x−1 and Line S: $y=\frac{x}{6}+1$y=x6+1.