Help please geometry, show all work!! Thanks :-)

Mathematics

1 answer:

snow_lady [41]3 years ago

6 0

Answer:

BC = 20

Step-by-step explanation:

If all angles are the same then all the sides are the same; therefore, BC = AC.

Set up the equations to solve for y

-y + 23 = 6y + 2; add y to both sides

23 = 7y + 2; subtract 2 from both sides

21 = 7y; divide by 7

y = 3; now use this to substitute into term for BC = 6y + 2 = 6(3) + 2 = 18+2 = 20

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