Question

please answer both...... it's urgent​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

ANS4.

area of the pavement would be=10*2+10*2+12*2+12*2

                                                   =20+20+24+24=88m²

area of pavement =88 m² ans.

ans5.

in triangle ADC ,........

3x+7x+2x=180................triangle sum property

12x=180

x=180/12=15°

so,∠CDA=3x=15*3=45°

now. ∠CDA=∠ABC=45°.............in parallelogram opposite angles are equal to each other

so, ∠ABC=45°

now,

∠ABC+∠CBE =180°......LINEAR PAIR OF ANGLES

45°+∠CBE=180°

∠CBE=180-45=135°

SO, ∠CBE =135° ans.

ANS. 6.

BC²=AC²+AB²

BC²=8²+6²

BC²=64+36

BC²=100

BC=√100

BC=10 ANS.

ANS.7.

ratio of length is to breadth = 9:5

so, length =9x

and breadth =5x

now,

perimeter of rectangle = 2( length+breadth)

280=2(9x+5x)

280=2*14x

280=28x

x=280/28

x=10

so, length of rectangle=9x=9*10=90m

and , breadth=5x=5*10=50m

length=90 m, breadth=50 m......ans.

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