Question

8. Find the area of a triangle whose sides are 13cm, 14cm and
11cm​

Answer 1

Answer:

38

Step-by-step explanation:

13cm +14cm+11cm

=38cm area of triangle

Answer 2

Answer:

area of triangle = √s(s-a)(s-b)(s-c)

s = semi perimeter

half the perimeter of the triangle = 13+14+11/2

= 38/2

= 19m

= (s-a) = (19-13) = 6 m

= (s-b) = (19-14) = 5 m

= (s-c) = (19-11) = 8 m

area of triangle = √s(s-a)(s-b)(s-c)

= √19×6×5×8

= √4560

= 67.5m

Step-by-step explanation:

this is the right answer

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