Answer:
Length of rectangular cake = 5 cm
Breadth of rectangular cake = 6 cm
Area of rectangle = 5 cm × 6 cm =30 cm²
If cake is equally distributed between Honey and Money, then areas of two parts should be equal.
So, Amount of cake that Honey and money got 
Share of each (Honey and Money)=15 cm²
So, if the third cake if it was cut diagonally ,the cake must have some height.
Let the height of cake be H.
So, Height of third cake 
If , H=0 that is height is negligible having 0 thickness,
Then the Length of third cake, which is divided into two parts=√61=7.81 cm
C. 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60
1,000: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000
Now we find the common numbers. One doesn’t count as when multiplied later on, it will not change anything.
60: 2, 4, 5, 10, 20
1,000: 2, 4, 5, 10, 20
The highest common factor is 20 because it’s, well, the highest number.
D. Do the same thing for D.
24: 1, 2, 3, 4, 6, 8, 12, 24
880: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880
20 and 880: 2, 4, 8
8 is the Highest Common Factor.
E. Do the same thing with E.
90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
1,000: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000
90 and 1000: 2, 5, 10
10 is the Highest Common Factor.
