Area Of A Triangle

Triangle is a three-sided closed polygon.

 If we join two congruent triangles together then we get a parallelogram. So the area of the triangle will be half of the area of the parallelogram.

Area of Triangle = 1/2 (Area of  gm)

= 1/2 (base × height)

Example

Find the area of the figure given below:

Solution

Area of triangle = 1/2 (base × height)

= 1/2 (12 × 5)

= 1/2 × 60

= 30 cm2

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