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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 $5cm.$
 $8cm$ $15cm$ $2cm$ 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.
 $8cm$ $9cm$ $10cm$ $11cm$
•  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?
 $7cm^{2}$ $5cm^{2}$ $10cm^{2}$ $35cm^{2}$
•  Question 9: 3 pts The triangle shows all three of its medians drawn. If $MR=39cm,$ find $CR.$
$CR=$
•  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 $x$ if $CS=4x+14$ and $KS=13x+5.$
 $x=35$ $x=36$ $x=37$ $x=38$