Question

if the perimeter of a quadrilateral is 36 lengths of 3 sides are 10cm,8cm and 6cm respectively, then the fourth side is​

Answer 1

Answer:

x=12

Step-by-step explanation:

36=10+8+6+x

36=24+x

x=36-24

x=12cm

Answer 2

The fourth side of the quadrilateral is 12cm.

Given: The perimeter of a quadrilateral is 36 and lengths of 3 sides are 10cm,8cm and 6cm.

To find: We have to find the fourth side.

Solution:

Let the fourth side of the quadrilateral be x cm.

The perimeter of a quadrilateral is a sum of the four sides of the quadrilateral.

The three sides of the quadrilateral are 10cm, 8cm and 6cm.

Thus its perimeter will be-

$10 + 8 + 6 + x$

Given that the perimeter of a quadrilateral is 36cm.

So, we can write-

$24 + x = 36 \\ x = 12$

Thus, the value of x is 12.

So, the fourth side of the quadrilateral is 12cm.