Ncert solution for class 8 maths chapter 3
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The dotted lines are drawn additionally to help you. Q4 : Draw a rough figure of a quadrilateral that is not a parallelogram but has exactly two opposite angles of equal measure. A part of the donation is fixed and remaining depends on the number of old people in the home. State the properties you use to find them. Identify all the quadrilaterals that have.

Find and Lengths are in cm Ans. Find the age of the father. Tell the name of the regular polygon which has i 6 sides ii 3 sides iii 4 sides Ans. Find the value of Ans. Nine times this number is twice the number obtained by reversing the digits. . Find the number of notes of each denomination.

Hope you like them and do not forget to like , social share and comment at the end of the page. Explain how a square is. She wants to construct a house in the middle of the plot. Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Understanding Quadrilaterals. Answer: The sum of the measures of the angles of a convex quadrilateral is 360° as a convex quadrilateral is made of two triangles. Explain how this figure is a trapezium. All squares have a pair of parallel sides.

Page No 55: Answer: i A square is a quadrilateral since it has four sides. The exterior angle of this triangle will be the maximum exterior angle possible for any regular polygon. Which is its two sides are parallel? The measure of two adjacent angles of a parallelogram are in the ratio 3 : 2. Name the quadrilaterals whose diagonals are equal to each other. In a rectangle, diagonals are of equal length and also these bisect each other.

The exterior angle of this triangle will be the maximum exterior angle possible for any regular polygon. All squares are rhombuses as all sides of a square are of equal lengths. A polygon which has sides of equal length and the angles whose measures are equal is called a regular polygon. As such, students not only get access solved exercises but they can access educational videos, interactive games and more which makes learning more fun. Page No 55: Question 1: State whether True or False.

Q3 In a convex quadrilateral, determine the sum of measures of angles? Also, you can opt for either regular monthly tuition or join us only when you want to clear your doubts. Represent this situation algebraically only. Solutions of all questions are described completely. The topics and sub-topics in Chapter 3 Understanding Quadrilaterals are given below. Hence, if 360º is a perfect multiple of the given exterior angle, then the given polygon will be possible.

Find the angle measures x, y and z. Therefore, the sum of all the interior angles of this quadrilateral will be same as the sum of all the interior angles of these two triangles i. Answer Rectangle is a convex quadrilateral because its both diagonals lie inside the rectangle. Therefore, the sum of all the interior angles of this quadrilateral will be same as the sum of all the interior angles of these two triangles i. Apart from these we also have a responsive support team that is always ready and prompt to clear all the doubts of the students. Also, we know that an exterior angle and an interior angle are always in a linear pair.

Question 1: Given here are some figures Classify each of them on the basis of the following. By making use of these solutions, they will give students an idea about the exam pattern and marking scheme of the exam paper. Will this property hold if the quadrilateral is not convex? So the angle sum of the convex polygons having number of sides as above will be as follows. Each figure is divided into triangles and the sum of the angles deduced from that. Complete each statement along with the definition or property used. A garden is developed around the house. If the cars travel in the same directions at different speeds, they meet in 10 hours.

A kite does not have all sides of the same length. Explain why a rectangle is a convex quadrilateral. You can determine when and what pace you want to study a particular topic. What is the inspiration behind this? Q5 : The measures of two adjacent angles of a parallelogram are in the ratio 3:2. Determine the coordinates of the vertices of the triangle formed by these lines and the x — axis and shade the triangular region. Also determine the vertices of the triangle form by these lines and x — axis. Exterior angle of an equilateral triangle Hence, maximum possible measure of exterior angle for any polygon is 120º.

Calculate the number of sides a regular polygon will have if the value of an exterior angle is 36°? Question 3- What is the sum of the measures of the angels of a convex quadrilateral? Therefore, the sum of all the interior angles of this quadrilateral will be same as the sum of all the interior angles of these two triangles i. The solution provided here comes with well-prepared exercises along with detailed explanations structured by our expert teachers that further makes learning and understanding of concepts an easy task. All parallelograms have a pair of parallel sides. Find the number of lines in the wheel. A kite does not have all sides of the same length. Find the total cost of developing a garden around the house at the rate of Rs 55 per m². In above convex quadrilateral, it made of two triangles.