Question

the perimeter of a triangle is 16 cm and two of its sides measures 3.8 cm and 5.6 respectively find the third side​

Answer 1

Answer:

Step-by-step explanation:

let sides be a,b,c

a+b+c = 16

3.8+5.6+c= 16

c= 16-9.4

=6.6 cm

thus length oh third side = 6.6 cm

hope it helps.............

Answer 2

$\textbf{\underline{\underline{Answer :-}}}$

The Third side of the triangle measures 6.6 cm

$\textbf{\underline{\underline{Explanation :-}}}$

Given :

Perimeter of the triangle = 16 cm

One side = 3.8 cm

Second side = 5.6 cm

To find :

The Third side of the triangle.

Solution :

$\star$ Perimeter of triangle =

$\boxed{\sf{Side + Side + Side}}$

Consider the Third side as x

$\sf{\implies}3.8 + 5.6 + x = 16$

$\sf{\implies}9.4 + x = 16$

$\sf{\implies}x = 16 - 9.4$

$\sf{\implies}x = 6.6$

$\boxed{\bigstar \: {\sf{third \: side = 6.6 \: cm}}}$

$\therefore$ The Third side of the triangle measures 6.6 cm

Verification :-

$\sf{\implies}3.8 + 5.6 + 6.6 = 16$

$\sf{\implies}9.4 + 6.6= 16$

$\sf{\implies}16= 16$

When we placed the value of x (6.6) we got the required answer 16.

$\therefore$ The Third side of the triangle measures 6.6 cm