Question

find area of triangle in which , a = 13m , b = 14 m , c = 15 m .​

Answer 1

Step-by-step explanation:

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Answer 2

Given :-

• A = 13 m
• B = 14 m
• C = 15 m

To find :-

• Area of triangle

Solution :-

• Semi perimeter = a + b + c/2

➻ S = 13+ 14 +15/2

➻ S = 42/2 = 21

➻ S = 21 (semi perimeter)

★ Using Heron's formula

• Area of triangle = √S(s-a)(s-b)(s-c)

Now solving,

➥ √21 (21 - 13) (21 - 14) (21 - 15)

➥ √21 × 8 × 7 × 6

➥ √3 × 7 × 2 × 2 × 2 × 7 × 2 × 3

➥ 84 ★

Hence, the area of the triangle is 84 m.