Math, asked by deepupra123, 11 months ago

The length of a Rectangular blackboard
is double its width is 1.4m, find its
Area. Also Find The cost of painting the
blackboard at the rate of Rs. 19 Per m squaral​

Answers

Answered by himanshukhatri123
6

Answer:

if width is 1.4m

then length=2*1.4=2.8

area=l*b=1.4*2.8=3.92m^2

cost=19*3.92=74.48rs.

Answered by danshkum
2

Answer:

area of blackboard is 2.744m squaral

cost of painting the blackboard is Rs 52.136

Hope it helps you

Step-by-step explanation:

length = 1.4×1.4= 1.96 m

width =1.4

area = L×W

= 1.96×1.4 m

= 2.744 m squaral

cost of per m squaral = Rs 19

cost of 2.744 m squaral = 2.744×19

= Rs 52.136

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