2 years ago

Help me with this math exercice please

Mathematics

2 answers:

defon2 years ago

7 0

Answer:

? = 152-x

Step-by-step explanation:

The sum of the angles of a triangle equal 180

A+B+C = 180

28 + ? +x = 180

? = 180 - 28 - x

? = 152-x

Alex777 [14]2 years ago

3 0

Answer:

? = ( 152 - x )°

Step-by-step explanation:

We know that sum of all angles of triangle is 180°.

28° + x° + ? = 180°

subtract 28° from each side

28° - 28° + x + ? = 180° - 28°

x + ? = 152

Now, subtract x from each side

x - x + ? = 152 - x

? = 152 - x

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