## 1. TSA is again finding for all 6 faces/ surface ( sqaures), formula = 6 ( sidex side) = 6 ( lxl) LSA is finding for 4 faces excluding top and bottom, formula = 4 ( side x side)

## 2. 1. Figure out if any missing side is there or not. 2 Find the missing side/s 3. Add up all the sides in the boundary.

## 3. area

### 3.1. we connected it to area rectangle, formula = pi x r x r= pi r2

### 3.2. we understood the value of pi (3.14 or 22/7) the formula is 2 x r x pi

## 4. perimeter

## 5. define measurement: associating a value to any attribute...

### 5.1. What are the different attributes that can be measured? length, breadth, height, weight, capacity, time, area , perimeter,temperature, current,., money, angles

5.1.1. there is a related unit for each attribute

5.1.2. Answer-

## 6. Measurement focused this year= measurement of shapes

### 6.1. angles formed by lines

6.1.1. role of transversal and the different pairs of angles in transversal and their properties(CA,VOA, AA, AIA,AEA, LP, IA,EX

### 6.2. compound shapes

6.2.1. area

6.2.2. 1. Break into smaller shapes. 2. Find out the missing sides 3. Find area of individual square (lxl) or rectangle(lxb) 4. Add them up

### 6.3. area of of 3D shapes

6.3.1. Total surface area and lateral surface area of cuboid

6.3.2. Total surface area and lateral surface area of cube

### 6.4. we connected it with area of rectangle, formula = base x height

### 6.5. area of parallelogram

6.5.1. TSA is finding area of all 6 surfaces and adding it , formula = 2 ( lxb + bxh+ lxh) LSA is finding area of 4 surfaces excluding top and bottom and adding it, formula = 2( bxh + lxh)

### 6.6. circle

6.6.1. circumference

### 6.7. area of triangles

6.7.1. we connected it with area of rectangle, formula = 1/2 x base x height