help me with these plz it's urgent
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area of trapezium =area of rectangle+area of triangle
=2x.(x-4)+2x(x+5-(x-4))/2
2x²-8x+9x
=2x²+x
as area of trapezium=351
2x²+x=351
2x²+x-351=0
x
Step-by-step explanation:
2 Ques
area of pitch = sum of area of two rectangle
=k(5+k)+k(k+1)
=5k+k²+k²+k
=2k²+6k=80
2k²+6k-80=0
k=-6+√(36-4×2×(-80))/4
solve it you will get ans
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