Question

HELP ME!!(⊙_◎)


1) Perimeter of a square is 20 cm, then what will be the area of that

square.



2) A gate having dimensions 2 m X 1 m is in the wall of 3 m X 5 m. If

the cost of colouring is Rs. 100 per m2

, find the total cost of colouring

the wall.​

Answer 1

Answer:

1) Area of the square is 25 cm²

Step-by-step explanation:

1) If perimeter of square is 20 cm

i.e. 4 * side  = 20

=> side=20/4

= 5cm

The area of square = (side)²

=(5)²

=25

Hope it will help you

Answer 2

Answer:

1)

Perimeter of a square = 20 cm

4a = 20 cm

a = 5 cm

Therefore, area of a square = a²

= 5² = 25 cm²

2)

Area of a gate = l × b = 2 m × 1m = 2m²

Area of the wall = l × b = 3 m × 5 m = 15m²

Therefore, the total Area of the wall to be colouring = Area of the wall - area of a gate

= 15 - 2 = 13 m²

Total cost of colouring the wall = total area of the wall to colouring × 100

= 13 × 100

= Rs 1300

Hope it helps you.

Please mark as brainliest.