Can someone please explain how to do these two problems?
⦁ Devin is making a candle by pouring melted wax into a mold in the shape of a square pyramid. Each side of the base of the pyramid is 9 cm and the height of the pyramid is 10 cm. To get the wax for the candle, Devin melts cubes of wax that are each 4 cm by 4 cm by 4 cm. How many of the wax cubes will Devin need in order to make the candle? Show your work.
Answer:
(Score for Question 2: ___ of 5 points)
⦁ Rectangle 1 has length x and width y. Rectangle 2 is made by multiplying each dimension of Rectangle 1 by a factor of k, where k > 0.
⦁ Are Rectangle 1 and Rectangle 2 similar? Why or why not?
⦁ Write a paragraph proof to show that the perimeter of Rectangle 2 is k times the perimeter of Rectangle 1.
⦁ Write a paragraph proof to show that the area of Rectangle 2 is times the area of Rectangle 1.
Answer:
