Question

If the lengths of the sides of a triangle are 10 cm, 4 cm and 6 cm respectively, what is the area of the triangle?​

Answer 1

Answer:

Step-by-step explanation:

Lengths = 10 cm, 4 cm, 6 cm.

perimeter = a+b+c

= 10+4+6

= 20 cm

semi perimeter = 20/2 = 10 cm

area = root of (s-a) (s-b) (s-c)

= root of (20-10) (20-4) (20-6)

= root of 10 x 16 x 14

= 5 x (2 x 2) x (2 x 2) x (2) x 7 x (2)

= 2 x 2 x 2 root 5 x 7

= 8 root 35 cm^2

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