Question

Find area of triangular signboard whose sides are 5cm,12cm,13cm​

Answer 1

Step-by-step explanation:

Hello mate

Here is your answer

By using hero's formula we have

S= 1/2*(a+b+c)

= 1/2*(5+12+13)cm

= 1/2* 30 cm

= 15 cm

Now

Area = √s(s-a) (s-b) (s-c)

= √ 15*(15-5)(15-12)(15-13) cm^2

=√ 15* 10*3*2 cm.^2

= √ 5*3*2*5*3*2 cm^2

= √ 5*5*3*3*2*2 cm^2

=5*3*2 cm^2

= 30 cm^ 2

hope it helps

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Answer 2

Step-by-step explanation:

Pls mark brainliest sending pic now

Hope it helps!!!