Question

9. The sides of a triangle are 16 cm, 30 cm, 34 cm. Its area is
(a) 225 cm? (b) 225 73 cm? (C) 225 12 cm
(d) 450 cm?​
answer this step by step

Answer 1

240 cm2

Step-by-step explanation:

All the answer given are incorrect

According to Heron's formula area of any triangle whose side are a, b, c is given by √s*(s-a)*(s-b)*(s-c) where s 1s semiperimeter that is s=a+b+c/2

here s= (16+30+34)/2=40

s-a=40-16=24

s-b=40-30=10

s-c=40-34=6

s*(s-a)*(s-b)*(s-c)=57600

√57600=240

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Answer 2

Answer:

Area of a triangle= √s(s-a)(s-b)(s-c)

where a,b and c are sides and s= a+b+c÷2

s=16+30+34)÷2

s=40

Area=√40(40-16)(40-30)(40-34)

=√40(24)(10)(6)

=√40(1440)

=√57600

=240 sq.

there is no option of this answer

but this is correct answer

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