Question

the base of an isosceles triangle measures 80 cm and its area is 360 cm² find the perimeter of triangle by using herons formula


plz plz explain it properly
and solve thjs by using herons formula
like this pic​

Answer 1

Step-by-step explanation:

162 cm

thanks

hope it helps

Answer 2

Answer:

162cm

Step-by-step explanation:

Area of triangle =21​×base×height=360 sq cm

21​×80×height=360

=> height =9 cm.

Since the height of the triangle, divides it into two right angled triangles,

a2=h2+(2b​)2

=>a2=92+(280​)2

=1681

Hence, a=41 cm.

Perimeter of the triangle = Sum of all sides = a + a + b =41+41+80=162cm