Question

Find the perimeter of a triangle whose sides are in ap is 30

Answer 1

Answer:

step by step explanation

Answer 2

Answer:

a-d, a, a+d

Here "a' is a number and" d' is the difference

And a+d is the longest side and a-d is the sortest

Given :

a+d - (a-d) = 4

a+d-a+d = 4

2d=4

d=2

And also given:

Perimeter =30

a-d+a+a+d =30

3a =30

a=10cm

So sides are

a-d = 10-2=8cm;

a=10cm;

a+d=12cm