Hannah wants to make a necklace for her best friend. She wants to use one hundred 1.7 mm beads, twenty-five 6.5 mm beads, and fi
fty 3.4 mm beads. How much cord would Hannah need to cut if she needs to have 50 mm extra cord left over to tie a knot to finish the necklace?
1 answer:
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Answer:
240 m³
Explanation:
The volume of a pyramid is equal to:
Where B is the area of the base and H is the height of the pyramid.
Then, the base of the pyramid is a triangle, so the area of a triangle is equal to:
Where b is the base of the triangle and h is the height of the triangle. So, replacing b by 16 m and h by 9 m, we get:
Finally, replacing B by 72 m² and H by 10 m, we get that the volume of the pyramid is equal to:
Therefore, the volume is 240 m³