# Constructions Part-1 INTRODUCTION|Chapter Overview: What CBSE is going to ask you|CBSE Class 10 MATH

Constructions Part-1 INTRODUCTION|Chapter Overview: What CBSE is going to ask you|CBSE Class 10 MATH

Hello Friends…This is the first video for the chapter 11 constructions. In this video we have basically done the overview analysis of this chapter starting from recapitulating the concept you have learnt in class 9th. We will be focusing on what you have already studied and what you need to study in this chapter as per board examination. So please don’t forget to watch this video till the end.

# Constructions Part-2-Ex 11.1-Q.No1 |How to divide a line segment in a given ratio|CBSE Class 10 MATH

This is the 2nd part of our video session on Constructions. In this video we have shown you how to divide a line segment in the give ratio. We have also explained an alternative method to do that. Please watch it till the end so that u could have a better understanding over the concept. You can comment your doubts or problems in the comment section given below.You are also welcome to give your feedback or suggestions related to our youtube channel.

# Constructions Part-3|Ex 11.1 Q2|Constructing similar triangle as per scale factor|CBSE Class 10 MATH

Here we present you with 3rd video from the chapter Constructions. In this video we have tried to explain, (the constructions of similar triangle from a given triangle as per given scale factor), in a very simpler way as possible.

The question which we have discussed in this video is :

**Ex11.1**

** Question No 2. Construct a triangle of sides 4 cm, 5 cm and 6 cm and then a triangle similar to it whose**

**sides are 2/3 of the corresponding sides of the first triangle. **

Please watch it completely to understand the whole concept and dont forget to watch the next video i.e. part 4 of chapter constructions (as that contains the continuation part of part 3). Like ,Share and subscribe to our youtube channel and if you face any difficulty or doubt then do let us know by commenting in our comment section.

# Constructions Part-4|Ex 11.1 Q3|Constructing similar triangle as per scale factor|CBSE Class 10 MATH

This is the 4th video from chapter 11 Constructions. In this video we have demonstrated, (the constructions of similar triangle from a given triangle as per given scale factor), in a very simpler way as possible.

The question which we have discussed is :

**Ex11.1. **

**Question No 3.Construct a triangle with sides 5 cm, 6 cm and 7 cm and then another triangle whose**

**sides are 7/5 of the corresponding sides of the first triangle.**

Please watch it completely to understand the whole concept and dont forget to watch the next video i.e. part 5 of chapter constructions (as that contains the continuation part of part 4).

Like ,Share and subscribe to our youtube channel and if you face any difficulty or doubt then do let us know by commenting in our comment section.

# Constructions Part-5 | Exercise 11.1 SOLVED-Q.No 4,5,6,7 |CBSE Class 10 MATHEMATICS

Here we present you with 5th video from the chapter Constructions,CBSE CLASS 10 MATHEMATICS. In this video we have solved and explained Q.No 4,5,6,7 from the exercise 11.1 (the constructions of similar triangle from a given triangle as per given scale factor).

The questions which we have discussed in this video are :

**Exercise 11.1. **

**Q.No 4.Construct an isosceles triangle whose base is 8 cm and altitude 4 cm and then another triangle whose sides are 1 whole(1/2) times the corresponding sides of the isosceles triangle.**

**Q.No 5. Draw a triangle ABC with side BC = 6 cm, AB = 5 cm and ∠ ABC = 60°. Then construct a triangle whose sides are 3/4 of the corresponding sides of the triangle ABC.**

**Q.No.6. Draw a triangle ABC with side BC = 7 cm, ∠ B = 45°, ∠ A = 105°. Then, construct a triangle whose sides are 4/3 times the corresponding sides of Δ ABC.**

**Q.No.7. Draw a right triangle in which the sides (other than hypotenuse) are of lengths 4 cm and 3 cm. Then construct another triangle whose sides are 5/3 times the corresponding sides of the given triangle.**

Please watch it completely to understand the whole concept and dont forget to watch the next video i.e. part 6 of chapter constructions where we have explained some basic concept of TANGENTS and shown How to construct tangents from an external point (Ex11.2).

# Constructions Part-6 | Exercise 11.2 SOLVED-Q.No 1,2 |Construction of Tangents|CBSE Class 10 MATH

This is the 6th video from the chapter Constructions,CBSE CLASS 10 MATHEMATICS. In this video we have solved and explained Q.No 1 & 2 from the exercise 11.2 (To construct the tangents to a circle from a point outside it).

The questions which we have discussed in this video are :

**EXERCISE 11.2**

**In each of the following, give also the justification of the construction:**

**1. Draw a circle of radius 6 cm. From a point 10 cm away from its centre, construct the pair of tangents to the circle and measure their lengths.**

**2. Construct a tangent to a circle of radius 4 cm from a point on the concentric circle of radius 6 cm and measure its length. Also verify the measurement by actual calculation.**

# Constructions Part-7 | Exercise 11.2 SOLVED-Q.No 3,4 |Construction of Tangents|CBSE Class 10 MATH

Here we present you with 7th video from the chapter Constructions,(CBSE CLASS 10 MATHEMATICS) in which we have solved and explained Q.No 3 & 4 from the exercise 11.2 (To construct the tangents to a circle from a point outside it), in a very simpler way as possible.

The questions which we have discussed in this video are :

**EXERCISE 11.2**

**In each of the following, give also the justification of the construction:**

**3. Draw a circle of radius 3 cm. Take two points P and Q on one of its extended diameter each at a distance of 7 cm from its centre. Draw tangents to the circle from these two points P and Q.**

**4. Draw a pair of tangents to a circle of radius 5 cm which are inclined to each other at an angle of 60°.**

# Constructions Part-8 | Exercise 11.2 SOLVED-Q.No 5,6 |Construction of Tangents|CBSE Class 10 MATH

This 8th video from the chapter Constructions and in this video we have demonstrated and explained Q.No 5 & 6 from the exercise 11.2 (To construct the tangents to a circle from a point outside it).

The questions which we have discussed are :

**EXERCISE 11.2**

**In each of the following, give also the justification of the construction:**

**5. Draw a line segment AB of length 8 cm. Taking A as centre, draw a circle of radius 4 cm and taking B as centre, draw another circle of radius 3 cm. Construct tangents to each circle from the centre of the other circle.**

**6. Let ABC be a right triangle in which AB = 6 cm, BC = 8 cm and ∠ B = 90°. BD is the perpendicular from B on AC. The circle through B, C, D is drawn. Construct the tangents from A to this circle.**

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