# Rhombus + quadrilateral - math problems

#### Number of problems found: 8 Three sides of a quadrilateral are equal to the foreside which is 16 cm long. What is the length of the one with equal sides if the perimeter is 58 cm?
• Diamond PQOR In the diamond PQOR, the diagonal RQ is 4 cm long and the angle RPQ is 60°. What is the circumference of this diamond?
• Trapezoid Are diagonals in a rectangular trapezoid perpendicular and bisect the angles?
• 4-gon It is true that a 4-gon whose two sides are parallel and the other two has equal length, is a parallelogram?
• The sum graphically Draw a graphically sum of the all sides of 4-gon ABCD. Show that the quadrilateral with vertices P1(0,1), P2(4,2) P3(3,6) P4(-5,4) has two right triangles.
• Height of the prism The volume of the quadrilateral prism is 723.6 cm3. The base of this prism is a rhombus with a side 9 cm long and a corresponding height of 6.7 cm long. Find the height of the prism. Calculate the surface of a quadrilateral prism according to the input: Area of the diamond base S1 = 2.8 m2, length of the base edge a = 14 dm, height of the prism 1,500 mm.