Answer:
The answers are:
Volume: 75 cubic centimeters
Mass: 645 grams
Step-by-step explanation:
In order to determine both volume and mass of the doorstop, we have to know the formulas of a triangular prism.
I have attached an image that shows some formulas about triangular prism.
As we see in the image, a triangular prism consists basically in a triangular face and its projection.
So, using the variables and formula of the image:
B=10 cm
H=6 cm
L=2.5 cm
Then, we know the density of the metal that is:
δ=
So, the mass of the doorstop is:
m=δ*V
m=8.6 * 75
m=645 gr
Finally, the volume is 75 and the mass 645 gr