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13 Perimeter and Area

Learning Objectives

After studying this chapter, students will be able to... Scan to learn
 recall the concept of perimeter and area of rectangle and square shapes
 understand that triangles as parts of rectangle
 generalise other congruent parts of a rectangle
 find the perimeter and area of a parallelogram
 find the area of a triangle
 find the circumference and the area of a circle

GET READY!

Sabia and her brother Sameer are watching the carpenter who is making some wooden frames at their home.

Uncle! What are
you making with I am making some Is this frame in parallelogram
this wooden log? wooden frames of shape? My teacher taught us
different shapes. about this shape.

Can you find the Yes, the sum of the
perimeter and area lengths of all its
of this parallelogram four sides will be its
shaped wooden perimeter. But, how
frame? can I find the area
of this parallelogram
shaped frame?

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