Q12 of 102 Page 181

Which of the following is not a prism?

Option (a) is a prism because the sides are congruent.

(b) is not a prism because top and bottom faces are not congruent in the picture. so it is the correct answer.

(d) is a prism because the sides are congruent.

The net shown below can be folded into the shape of a cube. The face marked with the letter L is opposite to the face marked with which letter?

Which of the nets given below will generate a cone?

We have 4 congruent equilateral triangles. What do we need more to make a pyramid?

Side of a square garden is 30 m. If the scale used to draw its picture is 1 cm : 5 m, the perimeter of the square in the picture is