Question

Two sides of a triangle are 24.8cm and 15.6cm if the perimeter of the triangle is 52.9cm find it's third side

Answer 1

Answer:

12.5 cm

Step-by-step explanation:

perimeter of triangle=a+b+c

let c be'x'

24.8+15.6+x=52.9

40.4+x=52.9

x=52.9-40.4

x=12.5cm

I hope you understand

so please follow me

Answer 2

Step-by-step explanation:

GIVEN :-

• Two sides of a triangle are 24.8 and 15.6 cm.

• perimeter of the triangle = 52.9 cm.

TO FIND :-

• The length of its third side.

SOLUTION :-

As we know that the perimeter is the measure of sum of all the sides of triangle,

$\\ : \implies \displaystyle \sf \: Perimeter = side_{1} + side_{2} + side_{3}$

$: \implies \displaystyle \sf \:52.9 \: cm \: = 24.8 \: + 15.6 \: +side_{3}$

$: \implies \displaystyle \sf \:52.9 \: cm = 40.4 + side_{3}$

$: \implies \displaystyle \sf \:side_{3} = 52.9 \: cm - 40.4 \: cm$

$: \implies\underline{ \boxed{ \displaystyle \bold{\sf \:side_{3} = 12.5 \: cm}}}$

_________________…

$\\ \underline{\bigstar\textsf{Diagram.}}$

$\\ \setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1, 0)(1,0)(3,3)\qbezier(5,0)(5,0)(3,3)\qbezier(5,0)(1,0)(1,0)\put(2.85,3.2){ \bf A }\put(0.5,-0.3){ \bf C }\put(5.2,-0.3){ \bf B }\end{picture}$