Question

1... perimeter of rectangle PQRS is 40 CM.If PQ:QR=3:5 find RS
2... In trapezium ABCD ,ABllCD.angle A=80degree angleB=75degree find angle D​

Answer 1

Answer:

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Answer 2

let side of rectanglr be 3x and 4x respectively

perimeter of rectangle=2(l+b)

2 (3x+4x)=70

2(7x)=70

7x=70/2

=35

7x=35

X=35/7

X=5

QR is taken as breadth

4x=5×4

20