Question

two equal sides of a triangle are each 4 m less than the third side find the dimension of the triangle if its perimter is 55 m​

Answer 1

Answer:

17, 17 and 21 m.

Step-by-step explanation:

Let the equal sides are of length a. So the length of the remaining sides should be a + 4.

Perimeter = 55m

⇒ sum of sides = 55 m

⇒ a + a + a + 4 = 55

⇒ 3a = 55 - 4

⇒ 3a = 51  

⇒ a = 51/3

⇒ a = 17

    Hence the sides are 17, 17 and 17 + 4 = 21 m

Answer 2

Let, the third side of the triangle be x

the equal side of the triangle be (x-4)

the two equal sides of the triangle be 2(x-4)

ATP

2(x-4)+x = 55

=) 2x-8+x = 55

=) 2x+x = 55+8

=) 3x = 63

=) x = 63/3 = 21

Ans:- The third side = 21m

The two equal side = (21-4) = 17m