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  • Geometry
  • Triangles
  • Triangle formulas

Triangle formulas

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  • Question 1:
    1 pts
    Find the area of the triangle shown on the picture.
    Area ==
  • Question 2:
    1 pts
    Find the perimeter of the equilateral triangle if his sides has length 5cm.5cm.
    8cm8cm
    15cm15cm
    2cm2cm
    none of these
  • Question 3:
    1 pts
    The sum of the lengths of any two sides of a triangle is greater than the length of the third side.
  • Question 4:
    1 pts
    Find the area of a triangle shown on the picture.
    Area ==
  • Question 5:
    2 pts
    Two sides of a triangle are 3 and 15 centimeters. The perimeter is 27 centimeters. Find the third side.
    8cm8cm
    9cm9cm
    10cm10cm
    11cm11cm
  • Question 6:
    2 pts
    Find the area of an equilateral triangle with sides of length 20 inches.
  • Question 7:
    2 pts
    The area of triangle is given. Find the length of the base.
    Base ==
  • Question 8:
    3 pts
    What is the area of the triangle shown on the picture?
    7cm27cm^{2}
    5cm25cm^{2}
    10cm210cm^{2}
    35cm235cm^{2}
  • Question 9:
    3 pts
    The triangle shows all three of its medians drawn. If MR=39cm,MR=39cm, find CR.CR.
    CR=CR=
  • Question 10:
    3 pts
    We can find the area of the right triangle if we know the length of hypotenuse and one leg.
  • Question 11:
    3 pts
    The triangle shows all three of its medians drawn. Find xx if CS=4x+14CS=4x+14 and KS=13x+5.KS=13x+5.
    x=35x=35
    x=36x=36
    x=37x=37
    x=38x=38