Haneet Gandhi and Yukti Sharma Solutions for Chapter: Three-Dimensional Shapes, Exercise 1: CHECK YOUR MATHEMATICS

Which of the following is not a net of closed cube?

In a playing dice, numbers at opposite faces add to seven. Which of the following will fold to make a playing dice?

If the internal length, breadth and height of a rectangular box are $10 cm, 6 cm$ and $15 cm$. How many cubes of one centimeter unit will fill the box completely?

Which shape will we get as the cross-section when a sphere is cut vertically by a plane?

Which three-dimensional shape will we get by folding the given net?

Tanya wrote a riddle for her friends:

I am a three-dimensional object. I have four triangular faces, six edges, and four vertices.

Who am I?

The answer to the riddle is _____.

Guess the three-dimensional shape that has two regular hexagonal faces, six rectangle faces, $18$ edges, and $12$ vertices?

In the shape given below, which of the following relations holds true:

$V$ means number of vertices.

$E$ means number of edges.

$F$ stands for number of faces.