The sides of a Triangle are in the ratio of 13:14:15 and its perimeter is 84cm find the area of the Triangle
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Answered by
0
Step-by-step explanation:
area = the whole root of
s (s-a)(s-b)(s-c)....
s is half of the perimeter that is 42.
First It is required to find a,b,c that is
13x + 14x + 15x = 84 (as perimeter= a+b+c)
Answered by
2
Answer:
336 cm²
Step-by-step explanation:
Ratio = 13 : 14 : 15
Perimeter = sum of all sides =84
So let the side be x.
13x + 14x + 15x = 84
=> 42x = 84
=> x = 84 /42
= 2
Therefore, 13x = 26
14x = 28
15x = 30
Area= root of s(s-a)(s-b)(s-c)
= root of (42 × 16 × 14 × 12)
= root of (2×3×7×2×2×2×2×2×7×2×2×3)
= 2×2×2×2×3×7
= 336cm²
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