Find the perimeter of the triangle on the dot grid below, correct to the nearest tenth, assuming the distance horizontally and vertically between any two points is 1 inch.

Calculate the area of a circle with a radius of 5 m using \( \pi \\).

\begin{tabular}{l}\hline Find the distance between the two points. (Show Work) (Page 31-33, 36) (3pts) \\ \( \qquad \begin{array}{l}d=\sqrt{\left(x_{2}-x_{1}\right)^{2}+\left(y_{2}-y_{1}\right)^{2}} \\ P(-12,-23) \text { and } Q(6,1)\end{array} \) \\ \hline\end{tabular}

Find the midpoint of the line segment with the given endpoints. \( \begin{array}{ll}\text { 23) }(-7,10),(-10,-10) \\ \mathrm{mPX}=-7+-10^{2} & \text { 24) }(-1,-6) \cdot(6,-5)\end{array} \)

Determine o valor de \( m \) para que as retas \( r \) e \( s \) sejam concor- rentes e ache o ponto de interseção, sendo \( r: \frac{x-1}{3}=y+2=\frac{z}{-2} \quad \) s: \( \left\{\begin{array}{l}x=m-t \\ y=1+t \\ z=2 t, t \in R\end{array}\right. \)

Determine o valor de \( m \) para que as retas \( r \) e \( s \) sejam concor- rentes e ache o ponto de interseção, sendo \( r: \frac{x-1}{3}=y+2=\frac{z}{-2} \quad \) s: \( \left\{\begin{array}{l}x=m-t \\ y=1+t \\ z=2 t, t \in R\end{array}\right. \)