Calculate Angle X in Straight Line: Given 41° and 45° Angles

Question

Calculate the value of the angle X.

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Video Solution

Solution Steps

00:00 Calculate X
00:03 The angles are adjacent, forming a straight angle (sum to 180)
00:06 Add and equate to 180, solve for X
00:09 Collect like terms
00:12 Isolate X
00:14 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we will apply the triangle sum theorem:

  • Step 1: Identify the triangle formed by the known angles and the unknown angle X X .
  • Step 2: Use the triangle angle sum property which states: The sum of the angles in a triangle is 180 180^\circ .
  • Step 3: The known angles in the problem are 41 41^\circ and 45 45^\circ .

Now, let's complete the steps:

Step 1: The angles presented form a triangle involving the angles 41 41^\circ , 45 45^\circ , and X X .
Step 2: Apply the triangle angle sum theorem: 41+45+X=180 41^\circ + 45^\circ + X = 180^\circ .
Step 3: Simplifying this we get:

41+45+X=180 41 + 45 + X = 180

86+X=180 86 + X = 180

Solve for X X :

X=18086 X = 180 - 86

X=94 X = 94

Therefore, the value of angle X X is 94 94^\circ .

Answer

94