Answer:
Step-by-step explanation:
let one diagonal=x
other diagonal=3x
area=1/2 (x±3x)=3/2 x²=54
x²=54×3/2=81
x=9 cm
3x=3×9=27
sum of diagonals=x+3x=4x=4×9=36 cm
7/9 divided by 5/6 = 14/15
in decimal for it would be 0.93
7 x
times 14.6 x
<em>Multiply 7 and 14.6 and add exponents</em>
Final Answer 102.2 and 
hope that helps :)
Answer:
the answer is -i
Step-by-step explanation:
The answer is 6, 4 divided by 2/3 =6
if you need to show your work just multiply by the reciprocal :)