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3 years ago

8

The perimeter of an isosceles triangle is 12a + 8b

1 answer:

n200080 [17]3 years ago

5 0

(12a + 8b) - (2a - 4b)
12a + 8b - 2a + 4b
10a + 12b

(10a + 12b)/2
5a + 6b

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