Question

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal
sides, what is the length of the third side.​

Answer 1

Answer:

80

Explanation:

Let equal side be x

third side be x+20

A/Q

x+x+x+20=200

3x+20=200

3x=200-20

x=180/3

x=60

hence third side is 60+20=80

Answer 2

Let the equal sides of triangle be x.

Third side= 20 more than the equal sides

=20+x.

Perimeter of triangle=200.

Let a=x=b ; c = 20+x.

Perimeter of triangle = sum of all its three sides

200 = a+b+c

200 = x+x+(20+x)

200-20=3x

180 = 3x

180÷3 = x

60=x=a=b.

Third side = 20+x

Third side = 20+60

Third side= 80.

Here's your answer and plzz tell me whether it was correct or not...