Find the area of an isosceles triangle having base 3 cm and length of one of the equal sides is 5 cm.

Question

Find the area of an isosceles triangle having base 3 cm and length of one of the equal sides is 5 cm.

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Skylar 1 week 2021-09-10T16:40:36+00:00 1 Answer 0 views 0

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    2021-09-10T16:41:58+00:00

    Answer:

    base=3cm

    equal sides=5cm,5cm

    semi perimeter, s = a+b+c/2=3+5+5/2 CM =13/2cm=6.5cm

    Area of triangle=√s(s-a) (s-b) (s-c)

    = √6.5(6.5-3)(6.5-5)(6.5-5)

    =√6.5*3.5*1.5*1.5

    =√5*1.3*5*0.7*1.5*1.5

    =5*1.5√1.3*0.7

    =7.5√0.91

    =7.5*0.9539

    =7.1545..

    Step-by-step explanation:

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