In the diagram. Find h
...
In the diagram. Find h
A.
127cm
B.
127√6cm
C.
712cm
D.
12cm
Correct answer is B
A△ = √S(S−a)(S−b)(S−c) (Hero's Formula)
S = a+b+c2 = 5+6+72
182=9
A△ √9×4×3×2
√216=6√6cm3
A△ = 12×6×h
6√6=12×7×h
h = 12h√6
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