Question

The lengths of sides of a triangle are 8 cm , 11 cm and 13 cm , then area of triangle is _______ .

a) 44 b) 43

c) 42 d) 8√39​

Answer 1

Answer:

8√30cm²

Step-by-step explanation:

given:- a = 8cm

b = 11cm

c = 13cm

now,

S = (a+b+c)/2

S = (8+11+13)/2

S = 32cm/2

S = 16cm

By using herons formula,

Area of triangle = √s(s-a)(s-b)(s-c)

area = √16(16-8)(16-11)(16-13)

= √16×8×5×3

= 4×2√2×5×3

= 8√30cm², ans .

Answer 2

Answer:

Here is the answer for your question:

d)8√30

Type the question correctly dude....

Step-by-step explanation:

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