Perhaps you falsely assumed that these were really triangles. To the naked eye, the "apparent hypotenuses" of the big triangles look like straight lines, but each consists of two straight line ...
The straight line through two points will have an equation in the form \(y = mx + c\). Then, we can find the value of \(c\), the \(y\)-intercept, by substituting the coordinates of one point into ...
The straight line through two points will have an equation in the form \(y = mx + c\). We can find the value of \(m\), the gradient of the line, by forming a right-angled triangle using the ...