Answer:
Angle D is equal to 80.
Step-by-step explanation:
We know that the sides are congruent and that angle ACB is congruent to angle ECD by the vertical angles theorem.
Triangles' angles always add up to 180.
180 - 70 - 30 = 80
angle D is equal to 80.
The answer is 40. Just multiply 10x4 and you get the answer
First solve the volume of the prism
V = l x w x h
where l is the length
w is the width
h is the hieght
V = 20 x 2 x 314
V = 12560 cu in
then solve the volume of the cube
V = e^3
V = 14^3
V = 2774 cu in
number of cube = 12560 / 2774
number of cube = 4 cubes
