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Grade 7 - Mathematics
Perimeter of Triangle - Using Pictures

Perimeter of Triangle = side + side + side

Example 1: Find the perimeter of the right angle triangle.
Perimeter = 4 + 5 +5 = 14 in

Example 2: Find the perimeter of the right angle triangle.
Perimeter = 5 + 6 +4 = 15 cm

Example 3: Find the perimeter of the acute angle triangle.
Perimeter = 13 + 13 + 16 = 42 m

Example 4: Find the perimeter of the obtuse angle triangle.
Perimeter = 7 + 6 + 8 = 21 in


Directions: Find the perimeter of the triangles. Write the answers without the units.

Name: ___________________

Date:___________________

Grade 7 - Mathematics
Perimeter of Triangle - Using Pictures