8. Rewrite the equation \( x^{2}+y^{2}-8 x+6 y+9=0 \) in graphing form and state the radius and center of the circle. Homework Help

В параллелограмме \( A B C D \), угол \( A=60^{\circ}, A D=8 \mathrm{~cm} \). Диагональ \( B D \) перпендикулярна к стороне \( A B \mathrm{n} \) равна 5 cm . Найти площадь параллелограмма.

\( A, B, C \) are three points. \( A B=\sqrt{50} \mathrm{~cm}, B C=\sqrt{98} \mathrm{~cm} \), \( A C=\sqrt{288} \mathrm{~cm} \). Does the points \( A, B \) and \( C \) lie on a straight line.

2. If angles of the following measures are bisected, what will be the measures of the bisected angles? \( \begin{array}{lllll}\text { (a) } 60^{\circ} & \text { (b) } 90^{\circ} & \text { (c) } 120^{\circ} & \text { (d) } 85^{\circ} & \text { (e) } 100^{\circ}\end{array} \)

Con los siguientes segmentos construir utilizando elementos de geometria un cuadrilátero cuyas diagonales sean \( \overline{C D} \) y \( \overline{E F} \), no sean \( V \) perpendiculares y ambac

35. Ljestve duge 4 m naslonjene su na okomiti zid. Donji kraj ljestava udaljen je od zida 1.7 m . Koju visinu ljestve dosežu?