Question

What is the shape of the triangle in the following figure?
A.

B.

C.

D.

Answer 1

Hint: In this question we are asked to tell that out of these given shapes which one is a triangle. A shape can be defined as the form of an object or its outline, outer boundary or outer surface, everything that we see has a shape. Each shape has a fixed number of sides and corners. Using them we can tell about every shape.

Complete step-by-step solution:
Here we are learning about shapes, the study of shapes is known as geometry
Every shape has a fixed number of corners and sides,
A side can be defined as a line segment that connects two corners in a shape or a 2D figure.
A corner is the point where two sides meet.
Here in this question, we are asked to identify a triangle so we should know about the number of sides and corners of a triangle.
A triangle has 3 sides, 3 corners and if the triangle is rotated completely the shape remains the same see in the following figure,

Therefore, option B is the correct option.
Other options mentioned above are a figure C is a square, it has 4 sides 4 corners and each side is of equal length.

Figure A is a cone, it has 1 circular face, 1 corner also it has 0 edges

Figure D is a cuboid, it is a box shaped figure, it has 3 pairs (6) of rectangular faces attached opposite to each other, it has 12 edges and 8 corners (The line segment which acts as an interface between two faces is called an edge.)

Note: This is a theoretical question, we should know about the parameters required to define an object and then remember it for every object like no if corners, sides all of these things are fixed for a shape. Try to look for shapes in different objects that you see for better understanding of shapes.