Question

Find the area of a triangle whose sides are 11 m, 60 m and 61 m

Answer 1

Step-by-step explanation:

Here 2s=(61+60+11)cm

Therefore s=

2

132

cm=66cm

Here a=61cm ,b=60cm and c=11cm

Then by heron's formula,

Area of triangle PQR=

s(s−a)(s−b)(s−c)

=

66(66−61)(66−60)(66−11)

=

66×5×6×55

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Answer 2

Answer:

Here 2s=(61+60+11)cm

Therefore s=2132cm=66cm

Here a=61cm ,b=60cm  and c=11cm

Then by heron's formula,

Area of triangle PQR=s(s−a)(s−b)(s−c)

                                   =66(66−61)(66−60)(66−11)

                                   =66×5×6×55

                                   =108900