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Lesson 4: Missing angle problems

# Find measure of vertical angles

Given two intersecting lines and the measure of vertical angles, watch as we solve to find the measure of the remaining angles. Created by Sal Khan.

## Want to join the conversation?

• I still don't fully understand this is there another video to help me?
• For some reason, whatever the number is on the other side is your answer
• you may never use them. But it's good to learn them, just in case an everyday problem comes up that involves angles. You'll be able to solve it and help everyone else out because you saw that video on Khan Academy in 7th grade. :)
• Who would remember this
• I have no idea how to do this. I feel so stupid. How do I find the value of the angles? Every time I type out an answer, it ends up being an answer that was right in front of me the whole time. Can someone help me?
• I don't really understand this either, but there's no need to feel stupid. Don't get down on yourself. I will gladly help you, but I don't really understand what you need help with. I understand that you don't get it, but what don't you get?
• my work is saying onward to where i could not do it.
• For some reason i don't know how to do it can you explain me to this like im a 2 year old?
• All you have to remember is that the opposite part is equals to each other
• i sill dont understand this or how to do it? so what do i do
• I was very informed
• ok good
• i have a question: if the angle is a straight angle and there is another angle EX: 90 deg. would we need to multiply or add? (stupid question, i know)
• I think you would need to add.