The area of an isosceles triangle is 20 cm². If the perimeter of this
triangle is 22 cm and the length of the equal sides is 6 cm each,
find the height of the triangle.
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Step-by-step explanation:
let the unknown side be x
length of equal side of isosceles triangle = 6cm
perimeter of triangle = 22cm
perimeter = 6 + 6 + x
22 = 12 + x
22 - 12 = x
10 cm = x
area of triangle = 20cm^2
area of triangle = 1/2 Base * height
20 = 1/2 * 10* h
20* 2/10 = h
4cm = h
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