Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 1 Geometry Exercise 1.1

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 1 Geometry Ex 1.1

Question A. (i) Write down the names of shape in the following pictures.
Answer: Circle, square, rectangle, triangle. This figure combines a circular head, a square-like body, and triangular leg-like extensions. The eyes and mouth can be seen as small rectangles and a line segment, which is a type of geometric shape.
In simple words: This picture shows different shapes like a round circle, a flat square, a long rectangle, and pointy triangles all put together.

🎯 Exam Tip: When asked to identify shapes in an image, look for the basic geometric forms like circles, squares, rectangles, and triangles that make up the drawing.

Question A. (ii)
Answer: Square, circle, triangle, rectangle. This picture has many squares, like for its head and body. It uses circles for eyes, and the arms and legs are like rectangles. Small triangles can be seen at the top.
In simple words: This figure is made from squares, circles, triangles, and rectangles. You can see these basic shapes in its head, body, and parts.

🎯 Exam Tip: Remember that a square is a special type of rectangle, but when listing shapes, it's good to identify both if distinct examples are present.

Question B. (i) Write the number of squares and triangles in the given picture.
Answer:Square: 5
Triangle: 12
In simple words: Look closely at the picture. You can count five square shapes and twelve triangle shapes inside it. It's like finding hidden shapes!

🎯 Exam Tip: When counting shapes, make sure to count each distinct shape only once, even if it overlaps with others. Sometimes larger shapes can be made up of smaller ones.

Question B. (ii) Write the number of rectangles and triangles in the given picture.
Answer:Rectangle: 3
Triangle: 1
In simple words: In the picture of the house, there is one big triangle for the roof and three rectangle shapes: one for the main house body and two smaller ones for the windows or door.

🎯 Exam Tip: Remember that squares are also rectangles. When counting rectangles, ensure you include any squares present in the figure.

Question (iii) Identify the cut shapes and write the names in the boxes given below.
Answer:
(a) For the first shape:The shapes identified are a Triangle and a Pentagon. The star-like figure is formed by a central pentagon with triangle shapes attached to each of its sides, forming a star.
(b) For the second shape:The shape identified is a Triangle. This is a simple, three-sided polygon.
In simple words: For the first star shape, we see triangles and a pentagon. For the second shape, it is a simple triangle.

🎯 Exam Tip: When a figure is composed of multiple shapes, identify all the distinct geometric components. For simpler figures, state its primary classification.