Question 1:   Calculate the volume of a cuboid, if sides  $a=5cm$  and  $b=2cm$  and height  $h=3cm$

Question 2:   Calculate the area of a cube with side  $a=4$

Question 3:   Calculate volume of a sphere with radius  $r=3c{m}^3$

Question 4:   Calculate volume of a cylinder, if height  $h=8cm$  and area of the base is  $S=15c{m}^2$.

Question 5:   In the cube  $ABCDEFGH$  area of the face  $ABFE$  is equal to  $25c{m}^2$,  length of the side $AD$  equals  $5cm$ .  Calculate the volume.

Question 6:   Find a radius of a sphere if the volume is  $972\pi c{m}^3$

Question 7:   In a tetrahedron a side of the triangle, that is a base of the tetrahedron is  $b=3cm$ .  Apothem of the pyramid is  $a=8cm$ .  Find a square of the facet of the pyramid.

Question 8:   Projection of the segment  $AB$  on the X axis:  $A_x{B}_x=5$,  on the Y axis:  $A_y{B}_y=3$,  on the Z axis:  $A_z{B}_z=2$,  find the segment $AB$.

Question 9:   Projection of the segment  $AB$  on the X axis:  $A_x{B}_x=8$,  on the Y axis:  $A_y{B}_y=1$,  on the Z axis:  $A_z{B}_z=3$,  find the segment  $AB$.

Question 10:   Calculate the volume of the pyramid, with the height  $h=4cm$,  and area of the base  $S=12c{m}^2$