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  • Geometry
  • Quadrilaterals
  • Quadrilateral Formulas

Quadrilateral Formulas

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  • Question 1:
    1 pts
    		$d = a\sqrt{2}$ is a diagonal of a square.
  • Question 2:
    1 pts
    		Which formula can be used to find the perimeter of the quadrilateral shown on the picture?
    $P=a \cdot b \cdot c \cdot d$
    $P=a+b+c+d$
    $P=a\cdot b+c\cdot d$
    none of these
  • Question 3:
    1 pts
    		Area of parallelogram = $\dfrac{\mbox {base $\times$ height}}{2}$ = $\dfrac{b\cdot h}{2}.$
  • Question 4:
    1 pts
    		Area of rhombus = $\dfrac{d_{1}\cdot d_{2}}{2}.$
  • Question 5:
    2 pts
    		Which of the following expression is NOT correct?
  • Question 6:
    1 pts
    		Is the folowing expression true or false? $$\theta = 90^{\circ}$$
  • Question 7:
    2 pts
    		Area of Isosceles Trapezoid = $\dfrac{(a+b)\cdot h}{2}.$
  • Question 8:
    2 pts
    		Which formula can be used to find the altitude of the quadrilateral shown on the picture?
    $h^{2}=$
  • Question 9:
    3 pts
    		Which formula can be used to find the diagonal $d$ of the quadrilateral shown on the picture?
  • Question 10:
    3 pts
    		Which formula can be used to find the circumradius $R$ of the quadrilateral shown on the picture?
    $R=$
  • Question 11:
    3 pts
    		Is the folowing expression true or false? $$ d_{1}=a$$
  • Question 12:
    3 pts
    		Is the folowing expression true or false? $$ r=\dfrac{x}{2}$$

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