A wall is of the form of a trapezium with height 4 m and parallel sides being 3 m and 5 m. Find the cost of painting the wall if it has rate of painting as 25 per sq.m.
Answers
Answered by
3
Answer:
A wall is of the form of a trapezium with a height 4 m and parallel sides being 3 m and 5 m. The cost of painting the wall if it has the rate of painting as 25 per sq.m is Rs 400.
Step-by-step explanation:
Given: The height of trapezium = 4 m,
Two parallel sides length =3 m and 5 m.
Find the cost of painting the wall
Formula: Area of trapezium = 1/2 × (sum of parallel side) × height
Area of wall = 1/2 × (5+3 )× 4
= 1/2 × 8 × 4
= 4 × 4
= 16 sq. m
The rate of painting is Rs. 25 per square meter.
The cost of painting for 16 sq. m is = 16 × 25= Rs. 400.
So, the cost of painting the wall is Rs 400.
Similar questions