Page 128 - Math_Genius_V1.0_C7_Flipbook

D:\Surender Prajapati\CBSE_ICSE_Book_New\CBSE\Grade-7\Math_Genius-7\Open_File\05_Chapter\05_Chapter
\ 15-Nov-2024 Surender Prajapati Proof-5 Reader’s Sign _______________________ Date __________

10. Observe the following pattern and complete the table. Also, find a rule.

Pattern Perimeter Number of Unit Shapes (n)
(a) 1 1
1
5
1 1 ............................................... ...............................................
1
1 1 1 2
1 1 ............................................... ...............................................
1 1 1

1 1 1 1 1 ............................................... ...............................................
1 1
1 1 1 1

Rule for perimeter: ...........................................................................................................................

(b) 1 1 1 6 1

1 1 ............................................... ...............................................
1
1
1 1 1
1 1 1 1 1 ............................................... ...............................................

1 1 1
1 1 1 1 1 ............................................... ...............................................
1 1
1 1 1 1
1
Rule for perimeter: ...........................................................................................................................

11. A triangle is made up of 2 red sticks and 1 blue sticks r r . The length of a red stick is given by r
b
and that of a blue stick is given by b. Using this information, write an expression for
the total length of sticks in the given pattern.
COMPETENCY BASED QUESTION

www
MAths connect

Carbohydrates are the main source of energy for living beings. Grains, cereals, fruits, dairy product, vegetables
are the sources of Carbohydrates. Observe the following nutritional chart carefully:
Food Item (Per unit = 100g) Carbohydrates
Rajma 60g
Cabbage 5g
Potato 22g
Carrot 11g
Tomato 4g
Apples 14g
Write an algebraic expression for the amount of carbohydrates in ‘g’ for
(a) x units of potatoes and y units of rajma
(b) 2x units of tomatoes and y units of apples.

126