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Standard VII

Mathematics

Area of a Triangle

The area of t...

Question

The area of triangle with sides $5, 12, 13$ is

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Solution

Sides of triangle are $5, 12, 13$
Semi perimeter is $s = \frac{a + b + c}{2} = \frac{5 + 12 + 13}{2} = 15$
Area of triangle is $\sqrt{s (s - a) (s - b) (s - c)} \sqrt{15 (10) (3) (2)} = \sqrt{900} = 30$

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The area of triangle with sides 5,12,13 is

Sides of triangle are 5,12,13Semi perimeter is s=a+b+c2=5+12+132=15Area of triangle is √s(s−a)(s−b)(s−c)√15(10)(3)(2)=√900=30

The area of triangle with sides $5, 12, 13$ is

Sides of triangle are $5, 12, 13$
Semi perimeter is $s = \frac{a + b + c}{2} = \frac{5 + 12 + 13}{2} = 15$
Area of triangle is $\sqrt{s (s - a) (s - b) (s - c)} \sqrt{15 (10) (3) (2)} = \sqrt{900} = 30$