\begin{tabular}{l} Which could be the measures of the sides of a right triangle? \\ \hline \( 33 \mathrm{~cm}, 56 \mathrm{~cm} \), and 64 cm \\ 30 cm , and 90 cm \\ \( 36 \mathrm{~cm}, 76 \mathrm{~cm} \), and 85 cm \\ \hline\end{tabular}

47. The measure, in degrees, of each interior angle of a regular polygon with \( n \) sides is given by \( \frac{(n-2) \mid 80}{n} \). What is the sum of the measures of the interior angles of a regular octagon?

2] \( A B C D \) is aparallelogram, \( m(\angle A)+m(\angle C)=200^{\circ} \), then \( m(\angle B)=\ldots(50,80,100,160) \)

3] (a) If the distance between the point \( (a, 7) \) and the point \( (0,-5) \) equals 13 length units find the value of a

2 complementary angles have the sum of ............... \( 360^{\circ} \) B. \( 90^{\circ} \) C. \( 180^{\circ} \) D. \( 60^{\circ} \)

Calcola la lunghezza di una circoner tro 8 cm , approssimando \( \pi \) ai centesimi.