Question

the area of an triangle two sides of which two sides are 8 cmand 11cm and the perimeter is 32 cm is k square root of 30 cm² FIND THE VALUE OF K?? ​

Answer 1

Answer:

Perimeter of triangle = a + b + c = 32 cm

                                   = 8 + 11 + c = 32 cm ; 19 + c = 32 cm

                                  = c = 32 - 19 = 13 cm .

 Using Heron's Formula : √s(s - a)(s - b)(s - c)

                                        = √ ( 16 x 8 x 5 x 3 ) = 8√30 cm ²

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