3. Two of the vertices of a rectangle are \( (6,1) \) and \( (7,1) \). If the rectangle has a perimeter of 18 units, then what are the coordinates of its other two vertices?

X EXERCICE 15 \( A B C \) est un triangle. 1. Construire le point \( D \) tel que \( \overrightarrow{A D}=\overrightarrow{A B}-\overrightarrow{A C} \). Que peut-on dire du quadrilatère \( A D B C \) 2. Construire le point \( M \) tel que \( \overrightarrow{B M}=\overrightarrow{B C}-\overrightarrow{C A} \).

X EXERCICE 15 \( A B C \) est un triangle. 1. Construire le point \( D \) tel que \( \overrightarrow{A D}=\overrightarrow{A B}-\overrightarrow{A C} \). Que peut-on dire du quadrilatère \( A D B C \) 2. Construire le point \( M \) tel que \( \overrightarrow{B M}=\overrightarrow{B C}-\overrightarrow{C A} \).

Draw the graph of the following equation. \[ x^{2}+y^{2}+8 x+10 y-26=0 \]

11. \( A B C D \) sinia chiziq yasang, uning \( A B \) bo'g'ini \( 4 \mathrm{~cm} 7 \mathrm{~mm}, B C \) bo'g'ini \( =6 \mathrm{~cm} 3 \mathrm{~mm}, C D \) bo'g'ini \( =3 \mathrm{~cm} 5 \mathrm{~mm} \) bo'lsin. Shu siniq chiziqning umumiy uzunligini toping.

a. Find the area of the bigger room if the area of the smaller room is \( 8 \mathrm{~m}^{2} \). b. Find the ratio of their lengths c. If the length of the larger room is 10 m , find the length of the smaller one. \#\#\#ENDi\#\#\#