11. An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find
the area of the triangle.
Answers
Answered by
2
Step-by-step explanation:
let the third side of the triangle be x
perimeter is equals to sum of all sides so 12 + 12 + x is equals to 30 X is equals to 30 - 24 is equals to 6 as the the third side is 6 according to the formula of finding the area of triangle 1 upon 2 base into height base is equals to 6 and height is equals to 12 show the the area of the equilateral triangle is 36 CM square.
I hope it helps plz mark me brainliest friend
Answered by
2
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,
Similar questions