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I need help finding the value of x for these problem?

I need help finding the value of x for these problem?-example-1
User Valentin Yuryev
by
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1 Answer

20 votes
20 votes

ANSWER

No 3. x = 41 degrees

No 4. x = 6.5 degrees

Step-by-step explanation

Question 3

Note: One of the angles in a right triangle is 90 degrees. As a result, the sum of the other two angles is 90.

That is:


\begin{gathered} 45+(x+4)=90 \\ x+4=90-45 \\ x=45-4 \\ x=41^0 \end{gathered}

Question 4

Note: The sum of angles in a triangle is 180

That is:


\begin{gathered} 31+97+8x=180 \\ 128+8x=180 \\ 8x=180-128 \\ 8x=52 \\ x=(52)/(8) \\ x=6.5^0 \end{gathered}

User RoyB
by
2.8k points
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