1.The sides of a triangle are 25 cm,17 cm and 12 cm. Then area of the triangle is (1 Point)​

Question

1.The sides of a triangle are 25 cm,17 cm and 12 cm. Then area of the triangle is
(1 Point)​

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Maya 1 month 2021-09-22T21:02:08+00:00 1 Answer 0 views 0

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    2021-09-22T21:03:25+00:00

    Answer:

    Area of a Triangle is 90cm^2

    Step-by-step explanation:

    Given, let a=25cm, b=17cm, c=12cm be the all sides of triangle

    we know the formula-

    area (triangle) = [s(s-a)(s-b)(s-c)]^(1/2)       ——(1)

    now, s =   (a+b+c)/2   =   (25+17+12)/2  =  54/2  =  27cm

    put the above values in equation (1)

    area (triangle) =  [27*(27-25)*(27-17)*(27-12)]^(1/2)

                           =  [27 * 2 * 10 * 15]^(1/2)

                           =  [8100] ^ (1/2)

                           =  90cm^2

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