okay so put the decimal over 1 like this:
0.285714/1 then multiply by 10 for every number after the decimal point so if there were 2 numbers it would be 100
so 0.285714 times 1,000,000 is 287,514 and 1 times 1,000,000 is 1,000,000
so 287,514/ 1,000,000
simplified: 142,857/500,000 is your answer.
Answer:
Area of ABCD = 45.1 cm²
Step-by-step explanation:
From the figure attached,
Area of ABCD = Area of ΔBCD + Area of ΔABD
Area of ΔABD = 
sin(55°) = 
sin(55°) = 
AB = 10sin(55°)
AB = 8.19 cm
cos(55°) = 
= 
AD = 10cos(55°)
AD = 5.74cm
Area of ΔABD = 
= 23.51 cm²
Area of ΔBCD = 
= 
tan(38°) = 
BE = 
Similarly, DE = 
Since, BE + DE = 10 cm

CE(1.28 + 1.04) = 10
CE(2.32) = 10
CE = 4.31 cm
Area of ΔBCD = 
= 21.55 cm²
Area of ABCD = Area of ΔBCD + Area of ΔABD
= 21.55 + 23.51
= 45.06
≈ 45.1 cm²
51 it’s easy just divide it then subtract you get 51