Question

The total surface area of a cylinder whose base radius is 3.5 cm and height 7 cm is:
(a) 77 cm²
(b) 154 cm?
Ich 231 cm
(d) 400 cm?
A metallic pipe has an outer radius o 3 cm and an inner radius of 2 cm. Its length is 7 cm
volume of metal in the pipe in cm is :
220
(a)
(6) 22
(d) 220
o
170
Ich10
Maths Lab Activity
deduce the formula for total surface area of a cuboid, cube and cylinder.
required : Polyhedron kit-cube and
linder-paper model, worksheet
de the class into small group. Provide the
we mentioned materials to each group.
each group to open the cube and observe
et.
the students to draw the net of the cube
he worksheet and mark its side lengths as​

Answer 1

This way you can easily find the total surface area

Answer 2

Answer:

231 cm^2

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