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stepan [7]
3 years ago
12

Find the exact perimeter of triangle ABC.

Mathematics
1 answer:
Lady_Fox [76]3 years ago
5 0

Perimeter of triangle ABC is 6 \sqrt{5}+6 m.

Solution:

Given data:

AB = 3 \sqrt{5} m

BC = 3 \sqrt{5} m

CA = 6 m

Perimeter = Sum of all the sides

Perimeter of triangle ABC = AB + BC + CA

                                           =3 \sqrt{5}+3 \sqrt{5}+6

                                           =6 \sqrt{5}+6 m

Perimeter of triangle ABC is 6 \sqrt{5}+6 m.

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The third term of a sequence is 120. The fifth term is 76.8. Write an explicit rule representing this geometric sequence.
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an=ar^(n-1)
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from the question:
120=ar(3-1)
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a=120/(r^2)....i
also:
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