Question

please solve 3 qution
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Answer 1

Answer:

perimeter of triangle= sum of all sides

we have sides = 13x,12x and 5x

:. 450=13x + 12x + 5x

450=30x

450/30=x

x=15

:. sides= 13×15=195

12×15=180

5×15=75

195,180 and 75 are pythagorean triplets

:. the given triangle is right angled triangle

area of right angled triangle =1/2×sides adjacent to 90⁰

=1/2×180×75

=6750m²

Answer 2

Step-by-step explanation:

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