Question

The semiperimeter of a triangular feild is 210 m and its sides are 6:7:8.then the smallest sides is __m

Answer 1

Answer:

semiperimeter = 210

perimeter = 420

=420×6/21

=120m

Answer 2

Answer:

120 m

Step-by-step explanation:

P = 210 × 2 = 420 m

6x + 7x + 8x = 420

21x = 420 ===> x = 20 m

The sides of triangle are

6 × 20m = 120 m

7 × 20m = 140 m

8 × 20m = 160 m

The length of the smallest side is 120 m