Page 130 - Touchpad Mathematics_Ver1.0_C4

6. Tick() the shape which is not used in this shape.

a. Cylinder

b. Cone
c. Cuboid

d. Cube

7. look at the picture carefully. Count the different 3d shapes in it and answer the
questions below:
a. How many cones are there?

b. How many cylinders are there?

c. How many rectangular blocks are there?
d. How many cuboids are there at the base?

e. What is the total number of 3D objects in the picture?
8. look around you and name the shape:

a. with no edges. b. with only flat faces. c. with both flat and curved faces.

TRACing Solid ShApe

One bright morning, Meera’s teacher asked the class to trace objects and find the
shapes hidden inside them. Meera placed a bottle on a sheet of paper and traced
around it carefully. She was delighted to see that the outline formed a circle.
Her teacher explained that:

A bottle is a solid shape, but the outline of its base is a plane
shape — a circle. Meera smiled and traced more objects,
discovering rectangles, squares, triangles and circles.

She learned that every solid object hides a flat shape inside it.

plAne ShApeS

Any closed figure joining three or more points is a plane figure or shape. Triangles,
rectangles, squares, etc. are plane shapes.

Shape definition number of number of
edges corners

A closed figure bounded by three 3 3
lines or line segments

Triangle

128 Mathematics 3