The sides of a triangle are 21 cm, 17 cm, and 10 cm. Calculate its area and length of the height on the longest side.
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Step-by-step explanation:
Area is root s (s-a)(s-b)(s-c)
s=21+17+10/2=48/2cm=24cm
area=
\sqrt{24(24 - 21)(24 - 17)(24 - 10)}
that is
\sqrt{7 \times 4\times 3 \times 7 \times 7 \times 2}
7×2root 42
14root42cm2
it is equal to 1/2×21×height
this may help u
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