(i) A triangle of sides 15 cm, 14 cm and 13 cm respectively.
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Solution
verified of triangle
a=13,b=14,c=15
Semi-perimeter s=
2
1
(a+b+c)=
2
1
(13+14+15)=21
Area, A =
s(s−a)(s−b)(s−c)
A=
21(21−13)(21−14)(21−15)
A=84 cm
2
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Step-by-step explanation:
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Step-by-step explanation:
ur question is:
Find the area of a triangle whose sides are 13 cm, 14 cm and 15 cm.
answer-
Given sides of triangle
a=13,b=14,c=15
Semi-perimeter s= 1/2 (a+b+c)= 1/2 (13+14+15)=21
Area, A = √s(s−a)(s−b)(s−c)
A=√ 21(21−13)(21−14)(21−15)
A=84 cm ^2
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