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In this video, let's see how to find the area of a triangle.

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Let's take an example of a triangle over here.

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Now, let me make a copy of this triangle over here.

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Let me rotate this triangle and let me play it side by side.

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All right, but you can see that I get a parallelogram over here, right?

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This is a parallelogram.

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Now to know more about a program, check this section on programs under quadrilaterals.

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All right.

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Over here, you can see that this site is being decided to be right.

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Remember, because we took a triangle and made a copy of it.

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But the sides have to be equal.

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So these two sides are equal and these two sides are equal.

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Now, over here, this angle and this angle also are equal.

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Why is that so?

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Because we started with making a copy of the triangle.

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We started with this triangle.

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We made a copy of it and we rotated it, therefore, because we made a copy.

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These two angles are also equal ends because alternating angles are equal.

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We can find that these two lines are parallel.

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Right.

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So as angle one is equal to angle two, therefore these two lines are parallel and hence this is a parallelogram,

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right?

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All right, now you will see that in the case of the triangle, it's half the area of this program,

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the area of a triangle is equal to half the area of a parallelogram.

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And in the section in Parlo Grams, you can find how we found the area of a program.

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Let me quickly summarize it over here in this program.

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The height between these two parallel lines is each.

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Right, and when we take the heat, we always take the perpendicular height to the perpendicular distance

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between these two lines is each and the area of a program is based in height.

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Now, we have seen that the area of the triangle is half the area of the parallelogram, that is equal

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to half base in height.

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Now, this is the first formula that we study or the area of a triangle.

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We learn more ways of finding the area of a triangle in future areas.

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But this is the basic formula.

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Area of a triangle is equal to half in the base into its corresponding height.