The inradius of a triangle is 7 cm and its area is 343 cm². The perimeter of the triangle is

Correct option is A

Given:

Area of the triangle = $$343cm^2$$​​

Inradius of triangle = 7cm

Formula Used:

Area of triangle = Inradius $$\times$$​ Semi perimeter

Solution:

Inradius =7cm

Area of triangle = 7 $$\times$$​ Semi perimeter = $$343cm^2$$​​

Semi perimeter = $$\frac{343}{7} =49cm$$​​

Perimeter of triangle = $$2\times 49 = 98 \ cm$$​​