Question

if two equal sides of an isosceles triangle are (4x-2) cm and (3x+1) cm and third side is (2x -1) cm then its perimeter ​

Answer 1

Answer:

First we have to find x

so there are two equal sides

so

$4x - 2 = 3x+ 1 \\ 4x - 3x = 2 + 1 \\ x = 3$

so equal sides will be

4x-2=4(3)-2=12-2=10

3x+1=3(3)+1=9+1=10

third side= 2x-1= 2(3)-1=6-1=5

Step-by-step explanation:

Perimeter= sum of all sides

Perimeter = 10+10+5=25 cm

Answer 2

Answer:

25 cm

Step-by-step explanation:

(4x-2)=(3x+1)

4x-3x=1+2

x=3 cm

So, 4x-2 = 4×3-2 = 12-2 = 10cm = 3x+1

2x-1 = 2×3-1 = 6-1 = 5cm

Perimeter of triangle = Sum of three sides

= 10cm + 10cm + 5cm

= 25cm