Question

side of a cube is 5cm. what is the vost of painting its outer surgace of the rate of Rs. 10 per sq.cm​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Given:

Side of a cube(a) = 5cm

Cost of painting = 10₹ per sq.cm.

Solution:

Total Surface Area of a cube = 6a²

Substituting the value of 'a' in the expression- 6a², we get 6(5)²

6(5)² = 6(25)

6cm × 25cm = 150 cm²

Cost of painting it's outer surface = 150cm² × 10₹

= 1500₹

Therefore, cost of painting it's outer surface= 1500₹