How can you determine the surface area of a cube using its net diagram? Describe the steps involved.

Soit MNP un triangle tels que : \( \mathrm{MN}=6 \mathrm{~cm} ; \mathrm{NP}=4 \mathrm{~cm} \) et \( \mathrm{MP}=7 \mathrm{~cm} \). Construire les médianes de ce triangle

A right triangle has one angle measuring 45 degrees. If the length of one leg is 7 units, calculate the length of the other leg.

elect all of the options which are true of the perpendicular bisector of line AB

A cone has a base radius of 4 cm and a height of 9 cm. Calculate its volume.

0) A circle with diameter of length 20 cm ., passes through the vertices of \( \triangle A B C \) which is an acute-angled triangle in which \( B C=10 \mathrm{~cm} \)., then \( \mathrm{m}(\angle A)=\ldots \ldots \ldots \ldots \) \( \begin{array}{llll}\text { (a) } 30 & \text { (b) } 60 & \text { (c) } 45 & \text { (d) } 150\end{array} \)