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Online Quiz (Worksheet A B C D)

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Grade 7 - Mathematics
Perimeter of the Triangle

Example:
The sides of the triangle ABC are 12 cm, 5 cm and 9 cm. Find its perimeter.

Example:
Perimeter of the triangle (P) = S1 + S2 + S3
Where P is the perimeter of the triangle, S1, S2 and S3 are the sides of the triangle.
Given that,
S1 = 12 cm, S2 = 5 cm and S3 = 9 cm.
Hence P = 12 + 5 + 9
i.e P = 26 cm.
Therefore, the perimeter of the given triangle is 26 cm.


Directions: Read the above example carefully and answer the following questions. Also draw 10 different triangles, measure their angles and find their perimeters.

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