Question

find the side of an equilateral triangle whose perimeter is 20 whole 2/5m
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Answer 1

Answer:

perimeter of equilateral triangle=3*a

so, 3a=20 2/5=102/5;

a=102/(5*3)

a=34/5m or approx. 7m

Answer 2

Answer:

6 whole 4/5 m

Step-by-step explanation:

perimeter=20 2/5

=102/5 m

since the triangle is equilateral all sides are same .

thus side of triangle=102/5 ÷3

=34/5

=6 whole 4/5 m