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Mathematics 24 Online
CC12:

Math help please

CC12:

1 attachment
CC12:

@Shadow can you explain this to me

Shadow:

Since sides BA and AC are congruent to each other, so are the angles ABC and ACB, or just B and C.

Shadow:

25 = 5x.

Shadow:

We don't need to solve for x since by this we know that both angles are 25 degrees.

Shadow:

The sum of all angles in a triangle is 180 degrees. 25+25 = 50 180-50 = 130 Angle A = 130 degrees.

Shadow:

3y + 70 = 130 Solve for y

CC12:

y=20 thank you shadow

Shadow:

No problem

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