Question

find the area of a triangle,two sides of which are 60m and 80m and perimeter is 260m.

Answer 1

$<b> HELLO !$

$\underline\bold{GIVEN÷}$



First side=60


Second side=80

Third side=???


FIRST find third side
=================

To find third SUBTRACT =
====================

Total PERIMETER-Sum of given two side


So, subtracting we got

260-(60+80)

=260-140

=120

So,third side is $\red{\huge{120}}$

NOW to find area "USE HERON'S FORMULA""


$\sqrt{(s - a)(s - b)(s - c)}$
First find Semi-perimeter

DIVIDE 260 by 2


=260/2

=130

So, Semi-perimeter is 130

So" S"is=130


Now REPLACE in the formula


$\sqrt{(130 - 60)(130 - 80)(130 - 120)}$
=
$\sqrt{70 \times 50 \times 10}$
=
$\sqrt{35000}$

=187.082869.


So the are is $\red{\huge{187.082869}}$




****THNS 4 UR QUESTIONS***


☺️ MARK AS BRAILIEST ANSWER☺️