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olasank [31]
3 years ago
14

476 Marks boole Calculate the area of this triangle. 17 cm 8 cm 15 cm

Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0

Answer:

Step-by-step explanation:

sides =8 cm, 17 cm and 15 cm

Area of triangle by Hero's Formula,

S=a+b+c/2

S=17+8+15/2

S=40/2

S=20

A=\sqrt{s(s-a)(s-b)(s-c)}

A=\sqrt{20(20-17)(20-8)(20-15)}

A=\sqrt{(20)(3)(12)(5)}

A=\sqrt{3600}

A=60 cm^{2}

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First, we inspect what type of sequence is the order of the coordinates:
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a3 - a2 = 1
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The differences are not equal; hence, the sequence is not arithmetic.

Getting the ratio:
a3/a2 = 2
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The common ratio is 2. Using the general form for a geometric series:
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3 years ago
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7 0
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