Identify the following figures: in fig 12.7
Solution:
We know that
A rectangular pyramid is a 3-D object with a base shaped like a rectangle and triangle-shaped faces or sides that correspond to each side of the base. Like the other types of pyramids, a rectangular pyramid also has a point on top of the base of the pyramid that is joined together by bringing the top of all the sides which is known as the apex. A rectangular pyramid has a total of 5 faces, 5 vertices, and 8 edges and is of two types a right pyramid or an oblique pyramid. The base and the sides of the pyramid are joined at the vertex.
A triangular prism is a 3D shape with two identical faces in the shape of a triangle connected by three rectangular faces. The rectangular faces are referred to as the lateral faces, while the triangular faces are called bases. The bases are also called the top and the bottom (faces) of the prism.
The figure (i) is a rectangular pyramid and (ii) is a triangular prism.
Therefore, (i) is a rectangular pyramid and (ii) is a triangular prism.
✦ Try This: Consider the letters from A to Z. Which among them has no lines of symmetry
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 14
NCERT Exemplar Class 7 Maths Chapter 12 Sample Problem 12
Identify the following figures: in fig 12.7
Summary:
The figure (i) is a rectangular pyramid and (ii) is a triangular prism.
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