7th Maths |Practice Set 47 Lecture 2 Total Surface Area | Std 7 Maths| Perimeter and Area | Class 7 скачать в хорошем качестве

7th Maths |Practice Set 47 Lecture 2 Total Surface Area | Std 7 Maths| Perimeter and Area | Class 7

#Std7maths #Area #SurfaceArea #Std7 Perimeter and Area - Practice Set 44 video link -    • 7th Maths | Practice Set 44 Class 7| Std 7...   Perimeter and Area - Practice Set 45 video link -    • 7th Maths |Practice Set 45 Class 7| Std 7 ...   Perimeter and Area - Practice Set 46 Q1, Q2, Q3, Q5 video link -    • 7th Maths |Practice Set 46 Class 7| Std 7 ...   Perimeter and Area - Practice Set 46 Q4 video link -    • 7th Maths | Practice Set 46 Q4 | Std 7 Mat...   Perimeter and Area - Practice Set 47 Lecture 1 Link -    • 7th Maths |Practice Set 47 Lecture 1 Total...   7th Maths Playlist all topics -    • 7th Maths Maharashtra State Board | All Pr...   This Video explains Chapter 12: Perimeter and Area - Practice Set 47 of Standard 7 for Maharashtra State Board. In this video we will learn how to calculate total surface area of 3D shapes like cuboid and cube. Following questions of MSB Class 7 Maths PS 47 - Perimeter and Area have been explained in the video: Question 1. Find the total surface area of cubes having the following sides: i. 3 cm ii. 5 cm iii. 7.2 m iv. 6.8 m v. 5.5 m Question 2. Find the total surface area of the cuboids of length, breadth and height as given below: i. 12 cm, 10 cm, 5 cm ii. 5 cm, 3.5 cm, 1.4 cm iii. 2.5 m, 2 m, 2.4 m iv. 8 m, 5 m, 3.5 m Question 3. A matchbox is 4 cm long, 2.5 cm broad and 1.5 cm in height. Its outer sides are to be covered exactly with craft paper. How much paper will be required to do so? Question 4. An open box of length 1.5 m, breadth 1 m, and height 1 m is to be made for use on a trolley for carrying garden waste. How much sheet metal will be required to make this box? The inside and outside surface of the box is to be painted with rust proof paint. At a rate of Rs 150 per sq. m, how much will it cost to paint the box?