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16-11-2018
Mathematics

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What is BC ?

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16-11-2018

from the equal angles it is an isosceles triangle, AB = AC.

4x + 1 = 2x + 23

4x - 2x = 23 - 1

2x = 22

x = 22 : 2

x = 11

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4 * 11 + 1 = 2 * 11 + 23

45 = 45

--------------

now we find BC

3x - 8

3 * 11 - 8 =

25 (is the value of BC)

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