find the area of the triangle whose sides are 15cm,12cm and 17cm
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Answer:
find the area of the triangle whose sides are 15cm,12cm and 17cm
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Step-by-step explanation:
Answer:
the \: side \: of \: triangle \: are \: 12cm \: 15cm \: 17cm \:thesideoftriangleare12cm15cm17cm
by \: herions \: formulabyherionsformula
s = \frac{a + b + c}{2}s=
2
a+b+c
s = \frac{12 + 15 + 17}{2}s=
2
12+15+17
s = \frac{44}{2}s=
2
44
s = 22cms=22cm
area = \sqrt{s(s - a)(s - b)(s - c)}area=
s(s−a)(s−b)(s−c)
area = \sqrt{22(22 - 12)(22 - 15)(22 - 17)}area=
22(22−12)(22−15)(22−17)
area = \sqrt{22 \times 10 \times 7 \times 5}area=
22×10×7×5
area = 10 \sqrt{77} {cm}^{2}area=10
77
cm
2
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