HELP PLS !!
the answers are :
9) 38 degrees
10) 70 degrees
i don’t know how to do the work

see below

Step-by-step explanation:

9.  The sum of the angles of a triangle are 180.

The angles in the middle are vertical angles so they are equal.  That means the two outer angles have to add to the same amount

60+45 = 67+?

105 = 67+?

Subtract 67 from each side

105- 67 = 67+? -67

38 = ?

10.The part of the angle that is missing in the top triangle we will call x

The sum of the angles of a triangle are 180

x+ 57+68 = 180

We can find x

x +125 = 180

x =55

We know the bottom triangle the top angle is 90-x since the two angles add to a right angle so 90-55 = 35

The bottom triangle  has angles (35)  ,75 , ? and will sum to 180

(35) + 75 + ? = 180

Combine like terms

110+ ? = 180

Subtract 110 from each side

110-110 + ? = 180-110

? = 70

you just switch the numbers basically so it would be 3/17

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