Question

Two equal sides of an isosceles triangle are (3x – 1) and (2x + 2) units. the third side is 2x units. Perimeter of the triangle is​

Answer 1

Answer:

Hope it helps u my friend :)

ANSWER

In isosceles triangle two sides are equal,

So,

3x-1=2x+2

x=3

Perimeter=sum of all sides

=3x-1+2x+2+2x

=7x+1

Substituting value of x

Perimeter=7(3)+1

=21+1

=22

Thus x=3 and Perimeter of a triangle=22 square units

Answer 2

Step-by-step explanation:

✠ Question :

• Two equal sides of an isosceles triangle are (3x – 1) and (2x + 2) units. the third side is 2x units. Perimeter of the triangle is.

✠ To find :

• The value of x and the perimeter of the triangle.

✠ Solution :

Given -:

• First side = (3x - 1) units
• Second side = (2x + 2) units

As we know,

Two sides of an isosceles triangle are same.

According to the question,

➻ 3x - 1 = 2x + 2

⇒ 3x - 2x = 2 + 1

⇒ x = 3

Hence, the value of x = 3

━━━━━━━━━━━━━━━

∵ First side = Second side = (3x - 1)

= 3 × 3 - 1

= 8 units

➨ Third side = 2x

= 2 × 3

= 6 units

➨ Perimeter of the triangle = 8 + 8 + 6

= 22 units

Hence, the perimeter of the triangle is 22 units.