Math, asked by deeksha290, 9 months ago

permeter is 540cm. Find its area.
the area of the triangle.
6. An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find​

Answers

Answered by polagokul
1

Answer:

5.peremeter = sum of all sides

P=540

S1+s2+s3=540

11 x +19 +24x=540

54x=540

X=10

S1=110

S2=190

S3=249

6.Let The Third Side Be xcm.

Now Perimeter = 12+12+x

24+x = 30

x = 6

Now Find The Area Using Herons Formula

Semiperimeter = 30/2 = 15

Sq Root(15(15-12)(15-12)(15-6) ) = Sq Root(15*3*3*9) = Sq Root(1215) = 34.85 cm^2

So Area is 34.85cm^2

 

Answered by De20va07
1

Step-by-step explanation:

It looks like that there is an incomplete question 1

Answer of question 2)

Let The Third Side Be xcm.

Now Perimeter = 12+12+x

24+x = 30

x = 6

Now Find The Area Using Herons Formula

Semiperimeter = 30/2 = 15

Sq Root(15(15-12)(15-12)(15-6) ) = Sq Root(15*3*3*9) = Sq Root(1215) = 34.85 cm^2

So Area is 34.85cm^2

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