Question

a triangle whose sides are 21m 28m and 35m​

Answer 1

Answer:

YOUR ANSWER IN THE ABOVE ATTACHMENT

Answer 2

Step-by-step explanation:

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Find the area of a triangle, whose sides are:

21 m , 28 m and 35 m

Medium

Solution

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SidesofΔare

a=21m

b=28m

c=35m

s=

2

a+b+c

=

2

21+28+35

(Simplifying we get)

s=

2

84

=30

AreaofΔ=

S(S−a)(S−b)(S−c)

(formula)

=

42(42−21)(42−28)(42−35)

=

42×21×14×7

=

7×3×3×3×7×2×7×7

7×7×7×7×3×3×2×2

Ans=7×7×3×2=294m

2