Question

Happy RM day to all plz solve this fast with full explanation​

Answer 1

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Answer 2

Answer:

here A stands for area and P stands for Perimeter land b stands for length and breadth

Step-by-step explanation:

a) A= l*b= 12*8= 96

P= 2(l+b) = 2(12 +8)= 20 * 2= 40

b) A= l*b= 90sq.cm

15 * x= 90

90/15= x

x= 6

p=2(l+b) =2(15 +6) =21 *2= 42cm

c) P= 2(l+b) = 2( l+ 50)=300mm

l+50= 300/2

l+50= 150

l= 100

A= l *b= 100 *50 = 5000sq.mm

d) P= 2( 12 +b)= 44cm

12+b= 44/2= 22cm

b= 10cm

A=l *b= 10 * 12 cm

120sq.cm

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