Question

Please answer my question then I will mark you as the brainliest.​

Answer 1

Answer:

12-- l = 36cm and breadth = ?

area of rectangle = 540cm²

l×b = 540cm²

36×b = 540

b = 540/36

b = 15cm

perimeter of rectangle = 2(l+b)

parimeter of rectangle = 2(36+15)

perimeter of rectangle = 2(51)

parilmeter of rectangle= 2×51 = 102cm

perimeter of rectangle= 102cm

13-- dimension of wall = l=4m

l= 4×100cm

l= 400cm

b= 3m = 3×100cm

b= 300cm

area of wall = l×b

area of wall = 400×300

area of wall = 120000cm²

dimension of marbles tiles = l=12cm

b= 10cm

area of marbles tiles = l×b

area of marble tiles = 12×10cm

area of marble tiles = 120cm²

number of marbles tiles required = area of wall /area of marble tiles

number of tiles required = 120000/120

number of tiles required = 1000

14 - length = ? and breath = 25cm

area of rectangle = 600cm²

l×b=600cm²

l×25=6000cm²

l= 600/25

l=24

perimeter of rectangle = 2(l+b)

perimeter of rectangle = 2(24+25)

perimeter of rectangle = 2(49)

perimeter of rectangle = 2×49

perimeter of rectangle = 98cm

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