As isoscels triangle has perimeter 30 cm and each of the equal sides is 12cm find area of the triangle
Answers
Answered by
20
Answer:
Step-by-step explanation: let ABC be the triangle and AB =AC.
AB=12 cm
AC=12 cm
BC=30-(12+12)
=6 cm
By pathagoras theorum
Semi perimeter =30/2=15 cm
Area of triangle =√15(15-12)(15-12)(15-6)
=√15×3×3×9
=9√15 cm^2 solved
Answered by
24
First,let the third side be x.
It is given that the length of the equal sides us 12 cm and it's perimeter is 30 cm.
So,
So,the length of the third side is 6 cm.
Thus,the semi perimeter of the isosceles triangle (s) = 30/2 cm =15 cm
By using Heron's Formula,
Area of the triangle,
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