Answer:
Step-by-step explanation:
Volume of triangular prism:
=
× H
Volume of triangular pyramid:
=
The total volume of figure is
V =
+
Answer:
x=17, y=9. (17, 9).
Step-by-step explanation:
x+y=26
3x+8y=123
------------------
x=26-y
3(26-y)+8y=123
78-3y+8y=123
78+5y=123
5y=123-78
5y=45
y=45/5
y=9
x=26-9=17
60
30 *2
15 * 2 * 2
5 * 3 * 2 * 2