3. Special Right Triangles
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Use the Pythagorean Theorem.
Graph:
Equation: l = sqrt(3)w.
Let's draw a rectangle such that the length of the diagonal is twice as long as its width w. Let l be the length of the rectangle.
By the Pythagorean Theorem, we obtain the equation below.
Calculate power
LHS-w^2=RHS-w^2
sqrt(LHS)=sqrt(RHS)
sqrt(a* b)=sqrt(a)*sqrt(b)
Since w and l are the dimensions of the rectangle, they are positive and so, sqrt(w^2)=w and sqrt(l^2)=l.
Simplify root
Rearrange equation