Ncert maths class 10 chapter 11 exercise 11.2
Rating:
4,5/10
274
reviews

Answer a And d , that is, letters T and V have the same pattern rule as for letters L, C and F as the number of matchsticks required to make the letter is 2. Express the diameter of the circle d in terms of its radius r. Then the equation of the line in vector form is And equation of line in Cartesian form is 9. Hint: A regular hexagon has all its six sides equal in length. For a better understanding of this chapter, you should also see summary of Chapter 11 Constructions , Maths, Class 10. Video — will be available soon. The circle through B, C, D is drawn.

Answer Some expressions that can be formed using 5, 8 and 7 are given below. Construction 2: To construct a triangle similar to a given triangle as per given scale factor. Write in the comment section for any error or any solution related queries from the exercise. Question 10 Oranges are to be transferred from larger boxes into smaller boxes. On measuring the length, tangents are equal to 8 cm. It will help you stay updated with relevant study material to help you top your class! Draw a pair of tangents to the circle, which are inclined to each other at an angle of 60°. Chapter 11 Constructions in included in Unit 4 Geometry.

Chapter 11 Constructions in included in Unit 4 Geometry. Let it intersect the given circle at the points Q and R. In the adjoining figure Fig 11. We really do hope that this resolve the issue. Draw tangents to the circle from these two points P and Q. There are two cases for these type of constructions. Use s for the number of students.

Cartesian equation of this equation is 5. Draw arcs of same radius on both sides of the line segment while taking point A and as its centre. Find vector and Cartesian equations of the line that passes through the points and Ans. Find the formula for the total length of the edges of a cube. If there are 10 rows? We know that an angle in a serni-circle is a right angle. Ans : A line segment of length 7.

Let it intersect the given circle at the points Q and R. Answer Steps of Construction: Step I: With O as a centre and radius equal to 6 cm, a circle is drawn. To construct: A pair of tangents to a circle of radius 5 cm which are inclined to each other at an angle of Steps of Construction: a Draw a circle of radius 5 cm with centre O. If the point lies outside of the circle, there would be two tangents through this point. Take a point outside the circle. Justification: As in the previous question 6. Let the other parallel side be b.

Otherwise you can also buy it easily online. Let and be the position vectors of the points A and B respectively. Since ours is more or less a one man army we are working towards providing answers to questions available at our website. Comparing the given equations with and , we get and Since, the shortest distance between the two skew lines is given by ………. Hint : A regular hexagon has all its six sides equal in length.

Find the shortest distance between the lines whose vector equations are and Ans. Find the area of each section of the frame, if the width of each section is same. Let it intersects the given circle at the points B and E. Constructions, we shall study some more constructions by using the idea of the earlier constructions. These solutions not only help the students to clear their doubts but can also help them to have an in-depth knowledge of the concepts. Show that the line through points 4, 7, 8 , 2, 3, 4 is parallel to the line through the points Ans. Hence, the area of the octagonal surface is 119 m 2.

Use n for the number of rows. To construct: A circle of radius 3 cm and take two points P and Q on one of its extended diameter each at a distance of 7 cm from its centre and then draw tangents to the circle from these two points P and Q. Construct the tangents from A to this circle. Let it intersects the given circle at the points R and S. Show that the three lines with direction cosines are mutually perpendicular. What is the rule which gives the number of cadets, given the number of rows? Draw a circle with the help of a bangle. Use only two number operations.

Also verify the measurement by actual calculation. Express the perimeter of the hexagon using l. Click here to see or and in English Medium or View in or go back to main page. Solving the exercise questions will help the students to understand the concepts in a detailed way and will also help them in clearing their doubts. Find the general rule that gives the number of matchsticks in terms of the number of triangles.

From a point 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths. Find the angle between the following pairs of lines: i and ii and Ans. Let it intersects the given circle at the points C and D. Express the diameter of the circle d in terms of its radius r. In these the steps of constructions of each question of exercises are given properly.