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yarga [219]
3 years ago
9

Which one is correct?

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0

Answer:

85 (D.)

Step-by-step explanation:

The sum of all the degrees in a quadrilateral is 360, and since a triangle is half of a quadrilateral, the sum of the degrees in a triangle is 180.

With the given information, we can create the equation:

40+55+x=180

Simplifying on the left side gives us:

95+x=180

Subtracting 95 from both sides gives us:

x=85

<u>Therefore, the solution to your problem is 85.</u>

Hope this helped!

ddd [48]3 years ago
3 0

Answer:

85°

Step-by-step explanation:

Just add the known angles and subtract them from 180 to get the missing angle.

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