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Let's do this question what is the maximum number of abuse angles that a quadrilateral can have?

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Remember, an obtuse angle is an angle which is greater than 90 degrees and less than 180 degrees.

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All right.

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What was the video?

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Give it a thought and then let's do it together.

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All right.

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We're back.

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I hope you've given it a try.

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Now, remember, obtuse angle means greater than 90 and less than 180 degrees.

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Well, how many do you think can a quadrilateral have now?

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A cardinal can have a minimum of zero obtuse angles and a maximum of three obtuse angles.

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Let's see that with an example.

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Could we make some space over here?

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All right, now, over here, you have a quadrilateral with one, two, three, three obtuse angles.

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Now, when and you say that the number of obtuse angles is zero.

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Let's take an example.

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You have a rectangle, for example.

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All right.

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In case of a rectangle, every angle is equal to 90 degrees.

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We have seen that for 90 plus 90 plus 90 plus 90 gives you 360.

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And we have seen that the angle some of offer quadrilateral.

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Has to be 360 degrees right now, all year.

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Let's check the maximum now, if I want an abuse angle, I have to increase these angles, right, so

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I can increase this angle, this angle and this angle about 90.

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But because I have to maintain the same as constant, this has to be constant, therefore, or compensating

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for this increase, I have to decrease this one.

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Therefore, the maximum number of abuse angles that I can get is equal to three.