Question

hiplz explain properly onebyone ............ ok.......

Answer 1

1)SIDE=6CM AND PERIMETER =4*A =4*6=24CM AND AREA =A²=6²=26CM²

2)LENGTH =14CM AND BREADTH =4CM (OPPOSITE SIDES ARE EQUAL)                        PERIMETER=2(L+B)⇒2(4+14)⇒2(20)⇒20CM                                                                               AREA=L*B⇒14*4=56CM²

3)AREA =400CM²THEN U HAVE TO FIND THE SIDE SO A²=400CM² THEN A=20(BY TRANSFER THE SQUARE AND RHS)

SIDE=20CM                                                                                                                              PERIMETER=4*A ⇒4*20=80CM BUT WE SHOULD FIND IN METER IN QUESTION THEY HAVE GIVEN SO THE PERIMETER =0.8M

4) W.KT  AREA = BREADTH*LENGTH ⇒600=BREADTH*30⇒BREADTH=600/30=20CM

PERIMETER=2(L+B)  ⇒2(20+30)       ⇒2(50)=100CM

Answer 2

a) 6cm

b)perimeter of square =4×side=4x6=24cm

c)area =side^2=6x6=36cmsquare

given figures is a rectangle
length=14
breath=4

perimeter =2(length +breath) =2(14+4)=2×18
=36cm
area =length x breadth =14x4=56cmsquare.

c)given figures is a square
and area =400

area of square =side^2
so, side=20cm (taking root on both sides)

perimeter =4x20=80cm

given figure is a rectangle
length is30cm
area is600cm
we know that area of rectangle is length x Breath
and let breath be x
so, 30xX=600
X=600/30
x=20cm

so breath =20

now perimeter =2(l+b)=2(30+20)=2x50=100cm

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