Answer:
8 in.
Step-by-step explanation:
The ratio of the surface areas is equal to the square of the ratio of the heights
Let h = the height of the smaller dodecagonal pyramid
So, 
h = 8 in.
14x is the sum or 5x and 9x
Answer:
CHECK AT THE BACK OF YOUR BOOK
Step-by-step explanation:
THE ANSWER IS 0
it says i need to have at least 20 characters so here you go buddy
Answer:
A total of 387 centimeters of ribbon are used.
Step-by-step explanation:
We already know that two out of three pieces of ribbon are 1.25 meters.
The third piece of ribbon is 120 millimeters (mm) longer.
1 millimeters = 0.001 meters
120 x 0.001 = 0.12
That means that the third piece of ribbon is 0.12 meters longer than the first two. The length of the third ribbon is 1.25 m + 0.12 m = 1.37 m
In order to find the total number of meters of ribbon used, we need to do addition.
1.25 m + 1.25 m + 1.37 m = 3.87 m
But, the question is asking us the number of centimeters of ribbon that are used.
1 m = 100 cm
3.87 x 100 = 387 cm
Therefore, a total of 387 centimeters of ribbon are used.
Hope this helps! Have a blessed day! :)
