Chapter 11 Perimeter and Area class 7 Important formulas, Notes, MCQ'S, Extra Questions and answers
Here you'll find a summary of the perimeter and area formulas, as well as multiple choice questions and extra practice questions with answers to help reinforce your understanding of these concepts.
Perimeter and area are important concepts in mathematics that involve calculating the length and area of different shapes. Here are the formulas for calculating perimeter and area of different shapes covered in Class 7:
Perimeter of a rectangle: 2(l+b), where l is the length and b is the breadth.
Area of a rectangle: l x b, where l is the length and b is the breadth.
Perimeter of a square: 4s, where s is the length of each side.
Area of a square: s x s, where s is the length of each side.
Perimeter of a triangle: a + b + c, where a, b, and c are the lengths of the sides.
Area of a triangle: (1/2) x b x h, where b is the base and h is the height.
Perimeter of a circle: 2πr, where r is the radius of the circle and π is a mathematical constant approximately equal to 3.14.
Area of a circle: πr^2, where r is the radius of the circle and π is a mathematical constant approximately equal to 3.14.
It's important to note that these formulas are just the starting point for calculating perimeter and area, and there are many variations and modifications depending on the shape and context of the problem. It's also important to understand the units of measurement being used and how to convert between them if necessary.
Conversion of units:
1 cm2 = 100 mm.sq
1 m2 = 10000 cm.sq
1 dm2 = 100 cm.sq
1 km2 = 1000000 m.sq
1 hectare = 10000 m.sq
Perimeter and area are important concepts in mathematics that are introduced to students in class 7. These concepts are used to calculate the length and area of different shapes. To help students understand these concepts better, we provide a range of resources, including printable notes, MCQs, extra questions, and student resources.
Our printable notes provide a comprehensive overview of the different topics covered in the chapter on perimeter and area. These notes include detailed explanations of key concepts such as measuring lengths, calculating the perimeter of different shapes, and finding the area of different shapes. By referring to these notes, students can easily understand the concepts and develop a strong foundation in mathematics.
Our MCQs are designed to help students test their understanding of the concepts covered in the chapter. These multiple-choice questions cover a range of topics such as identifying the units of length, finding the perimeter of different shapes, and calculating the area of different shapes. By practicing these MCQs, students can improve their problem-solving skills and prepare themselves for exams.
In addition to printable notes and MCQs, we also provide extra questions that students can practice to enhance their understanding of the concepts covered in the chapter. These extra questions cover a range of difficulty levels, allowing students to gradually build their skills and confidence in mathematics. By practicing these questions, students can improve their problem-solving abilities and excel in exams.
We also provide a range of student resources to help students learn and understand the concepts covered in the chapter on perimeter and area. These resources include interactive quizzes, worksheets, and videos that provide a fun and engaging way for students to learn and practice mathematics. By using these resources, students can develop a strong foundation in mathematics and become confident problem solvers.
In conclusion, learning about perimeter and area is essential for students in class 7. By providing a range of resources such as printable notes, MCQs, extra questions, and student resources, we help students understand these concepts better and develop their problem-solving skills. Our resources are designed to make learning fun and engaging, allowing students to build their confidence and excel in exams.