378,768 views
13 votes
13 votes
2. Calculate the missing angle: 75 50° a)​

User Nicholas Wilson
by
3.0k points

2 Answers

13 votes
13 votes

Answer:

25

Explanation:

75 - 25 is 50

50 - 25 is 25

So the answer is 25

Hope this helps!

User Kacper
by
2.5k points
13 votes
13 votes

Answer:

The missing angle is 55°.

Explanation:

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The three interior angles of a triangle add up to 180°.

This means that:


x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\rule{150}{0.5}\\x - \text{unknown angle}

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Using the equation above, we would solve for x.


x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\rule{150}{0.5}\\x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\\x\textdegree + 125\textdegree=180\textdegree\\\\x\textdegree + 125\textdegree-125\textdegree=180\textdegree - 125\textdegree\\\\\boxed{x = 55\textdegree}

The missing angle should be 55°.

==========================================

Hope this helps.

User Faheemkodi
by
2.4k points