Question

plzzzzzz help me.........​

Answer 1

${ \bold { \underline{\large\purple{Correct \: Question : - }}}} \:$

The perimeter of an isosceles triangle is 30 cm .The length Of its congruent sides is 3cm more than its base .find the length of all the side.

${ \bold { \underline{\large\pink{Given : - }}}} \:$

★ Perimeter of an isosceles triangle is 30 cm

★ The length of its congruent sides is 3cm .

${ \bold { \underline{\large\pink{Find: - }}}} \:$

★ Find the length of all the side.

${ \bold { \underline{\large\purple{Diagram : - }}}} \:$

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

${ \bold { \underline{\large\purple{Solution : - }}}} \:$

So , Lets consider the base side be " x " then the congruent sides be ( x + 3 )

Now,

We know the perimeter of Triangle = Sum of all sides

(x + 3) + (x + 3) + x = 30

↬ 3x + 6 = 30

↬3x = 30 - 6

↬ 3x = 24

↬ x = 24/3

$\longmapsto\tt{x=\cancel\dfrac{24}{3}}$

↬x = 8 cm

Then,

Base side = x

= 8 cm

Congruent sides = ( x + 3 )

= ( 8 + 3 )

= 11 cm

Note :-

➤ Kindly see the diagram from site. (brainly.in)

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Answer 2

Answer:

QᏌᎬᏚᎢᏆᎾN

The perimeter of an isosceles triangle is 30 cm .The length Of its congruent sides is 3cm more than its base .find the length of all the side.

ᎪNᏚᏔᎬᎡ

${ \bold { \underline{\large\orange{Given : - }}}} \:$

★ Perimeter of an isosceles triangle is 30 cm

★ The length of its congruent sides is 3cm .

${ \bold { \underline{\large\pink{Find: - }}}} \:$

★ Find the length of all the side.

${ \bold { \underline{\large\blue{Solution : - }}}} \:$

So , Lets consider the base side be " x " then the congruent sides be

( x + 3 )

Now,

We know the perimeter of Triangle = Sum of all sides

(x + 3) + (x + 3) + x = 30

↬ 3x + 6 = 30

↬3x = 30 - 6

↬ 3x = 24

↬ x = 24/3

$\longmapsto\tt{x=\cancel\dfrac{24}{3}}$

↬x = 8 cm

Then,

Base side = x

= 8 cm

Congruent sides = ( x + 3 )

= ( 8 + 3 )

= 11 cm

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$\large\bf{\underline{\blue{hope \: it \: helps \: uh \: \: ✔}}}$