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# RD Sharma Class 7 Maths Solutions Chapter 20 - Mensuration-I

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## RD Sharma Solutions for Class 7 Maths Chapter 20 - Mensuration I (Area of Circle)

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RD Sharma Solutions For Class 7 Maths Chapter 20 PDFÂ  is the best study material for students who find it difficult to solve complex problems. From the links given, students can refer to and download the PDF of RD Sharma Class 7 Solutions Chapter 20. With clear step-by-step explanations, RD Class 7 Maths Chapter 20 Solutions Mensuration is given here. Among Class 7 students, RD Class 7 Maths Chapter 20 Solutions for Mensuration are extremely common for quickly completing their homework and preparing for exams.

1. What is Two-Dimensional and Three-Dimensional Mensuration?

Ans: Mensuration 2D deals specifically with perimeter and region issues. The form is two-dimensional, such as triangles, squares, rectangles, circles, parallelograms, etc. Mensuration 3D addresses forms such as squares, cuboids, spheres, etc. Generally, the problems are based on volume and surface area.

2. Why is the Chapter Mensuration Needed?

Ans: Mensuration can be clarified as a measurement act. We all exist in a three-dimensional universe. In primary as well as secondary school mathematics, the principle of measurement plays an important role. In addition, measurement has a strong association with our daily lives. For both 3D and 2D objects, we learn to do so while learning to measure objects.

3. Who is Known as the Father of Mensuration?

Ans: Leonard Digges is called the father of measurement. Through his writings in English on surveying, cartography, and military engineering, Leonard Digges was a well-known English mathematician and surveyor, credited with the invention of the theodolite, and a great popularizer of science.