the length of a rectangular blackboard is three times its width. If the width is 1.5 m, find its area. Also And the cost of painting the blackboard at the rate of 5.50 per sq. m.
Answers
Answered by
3
Answer:
2.25
Step-by-step explanation:
Because the area is 1.5 * 1.5 as its only 2 angles and yu times them together
Answered by
6
Answer:
37.125₹
Step-by-step explanation:
Let the length = 3x
Then, width will be = x = 1.5m
So, length = 3× 1.5m =4.5m
Area of rectangular blackboard=L×B
=1.5m×4.5m
=6.75 m²
If, 1m²=5.50₹
6.75m²= (?)
=6.75m²×5.50₹
1m²
= 37.125₹
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