Given the triangle below, which \( \begin{array}{ll}\text { A) } B \widehat{A} C=A \widehat{B} C & \text { B) }\end{array} \)

Make (h) the sabjec of the firmula o) \( g=\sqrt{n+e} \)

a) How much sleel la needed to creato each soction of the bridgo? b) What do we call a trianglo with these measurements? c) How many triangles aro found in the design of one completo side panol? (2) d) Calculato the amount of steel that is neoded for ono sido panel of the bridgo? (2)

(a) An angle measures \( 52^{\circ} \). What is the measure of its complement? (b) An angle measures \( 105^{\circ} \). What is the measure of its supplement? measure of the complement:

\( 4 x , 2 + 8,26 + 8,723 = \)

\( A = \left[ \begin{array} { c c c } { - 24 } & { - 24 } & { 36 } \\ { 18 } & { - 36 } & { 30 } \\ { - 12 } & { - 24 } & { 6 } \end{array} \right] \quad B = \left[ \begin{array} { c c c } { 2 } & { 2 } & { 2 } \\ { - 2 } & { - 1 } & { 1 } \\ { - 2 } & { - 2 } & { 2 } \end{array} \right] \)