Question

The perimeter of triangle is 12cm and its sides are in the ratio 5:12:13. Find

the area of triangle.​

Answer 1

Answer:

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Answer 2

Answer:

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Step-by-step explanation:

Given,

• perimeter of triangle=12cm
• sides of triangle are in ratio 5:12:13
• 5x+12x+13x=12 cm

30x=12 cm

x=2/5

• 5x=2 cm,12x=4.8 cm,13x=5.2cm
• Area=✓[s×(s-a)×(s-b)×(s-c)],where s is the perimeter of triangle/2 and a,b,c are sides of them.
• Area=✓[12×(12-2 )×(12-4.8)×(12-5.2)]
• Area=4.8cm^2

Hence,the area of triangle is 4.8 cm sq units