Rainbow 🌈 mind map and MCQ of Area

 Rainbow 🌈 mind map Area

Definition:  Area is the measure of the region inside a closed line.

Quantity: Derived quantity

Units: CGS- cm²,, MKS - m², FPS - ft² , SI- m² , Standard unit: hectare .

Relations:   1 km² = 1000000 m²

                   1 m² = 10000 cm² 

                  1 cm² = 100 mm²

                  1 hectare = 10000 m²

Formula: 

Area of rectangle = length x breadth

Area of a square = side²

Way to measure Area of regular objects ( regular, square etc):

• By Formula

Way to measure Area of irregular objects ( like leaf ): It is measured by using graph paper.

Rainbow 🌈 MCQ of Area

 

1.Area is measured of

 A)  the region outside a  line.
 B)  the space inside a line. 
 C)  the region inside a closed line.. 
 D) None of these

ANSWER= (C) the region inside a closed line
Explain:- Area is the measure of the region inside a closed line.

 

2. Area  is

 A) vector quantity 
 B) depending quantity 
 C) derived quantity 
 D) Fundamental quantity 

ANSWER= (C) Derived quantity 
Explain:- Area is derived quantity quantity. 

 

3. S.I unit of Area

 A) m²
 B) cm²
 C) hectare 
 D) mm²

ANSWER= (A) m² 
Explain:- S.I unit of Area is m².

 

4.one hectare =  _______ m²

 A) 100
 B) 10000
 C) 1000000
 D) 10

ANSWER= (B) 10000
Explain:- 1 hectare = 10000 m²

 

5.Area of rectangular plot= ______ 

 A) side²
 B) side³
 C) Length x Breadth
 D) Length  + Breadth 

ANSWER= (C) Length x Breadth  
Explain:-Area of rectangular Length x Breadth 

 

6.Area of a regular body can be found by 

 A) using graph paper 
 B) by using formula 
 C) by using measuring cylinder 
 D) all of above

ANSWER= (B) using formula 
Explain:-Area of a regular body can be found by using formula 
.

 

7. Area of a irregular body can be found by 

 A) using graph paper 
 B) using formula 
 C) using measuring. Cylinder 
 D) none of above 

ANSWER= (A) using graph paper 
Explain:- Area of a irregular body can be found by using graph paper.  

Here's a video representation: