Math, asked by navjitk68, 8 months ago

.perimeter of an isosceles triangle is 30 cm. If it's equal side is12 cm then third side will be:

Answers

Answered by IIIMobslayerIII

$\huge\red{ \mid{ \underbrace{ \overline{ \tt 6 cm }} \mid}}$

Explanation:

$<body bgcolor = blue>\huge{\underbrace{\red{\mathscr{Perimeter=Sum ~ of ~ all ~ sides}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathscr{Let ~ the ~ third ~ side ~ be ~ x.}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathscr{1st ~ side+2nd ~ side+3rd ~ side=Perimeter}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathfrak{=>12+12+x=30}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathfrak{=>x=30-12-12}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathfrak{x=6}}}}$

$<body bgcolor = blue>\huge{\underbrace{\red{\mathscr{The ~ 3rd ~ side ~ measures ~ 6.}}}}$

Answered by jahnavi2005singh999

Answer:

6cm

Step-by-step explanation:

in an isosceles triangle two sides are equal

Given- equal side is 12 cm so

1st side is 12 cm

2nd side is 12 cm

3rd side is ?

let the 3rd side be x

Perimeter of a triangle is sum of all sides

12+12+x =30

24+x=30

x= 30-24

x=6cm

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