plzzzz help mates to find the answer. No :-8
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plzzzz help mates to find the answer. No :-8
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Verified answer
(8).
Let the sides be a = 19.5, b= 30.0cm, c = 31.5.
We know that semi-perimeter of a triangle s = (a + b + c)/2
= > (19.5 + 30 + 31.5)/2
= > 40.5.
We know that Area of triangle by heron's formula:
=> 283.5 cm^2.
Now,
We know that Area of triangle = (1/2) * b * h
= > 283.5 = (1/2) * (31.5) * height
= > 283.5 * 2 = 31.5 * h
= > 567 = 31.5 * h
= > h = 567/31.5
= > h = 18.
Therefore, Altitude = 18cm.
Hope this helps!