perimeter of an isosceles triangle is 42 centimetre and the base is 3/2 times of the equal sides. find the length of each side of the triangle, area of the triangle and the height of the triangle
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Isosceles triangle
perimetr=42cm
anal sides = x, x
Base=3/2x
x + x +3/2x=42
2x+2x +3x=84
7x=84
x=12
Sides:
12,12,18 cm
Area of isosceles triangle:
b/4V4a^2-b^2
18/4V4X12^2-18^2
18/4V576-324
18/4v252=18/4 x 15.87
= 71.4cm2
height of the triangle
h=2A/b=2x71.4/18=7.9cm
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