Answer:
If you take the rectangle with the geometric center O. Match the sides of opposite triangles. AB will be equal to CD and AC is equal to BD. Angles AOB is equal to the angle COD and angle AOC is equal to angle BOD.
The two diagonals bisect each other and therefore each all parts of the diagonal are equal.
Therefore the two diagonals are congruent.
Answer:
help on chemistry is help on math for you
Answer:
A. V = 1.936 cm^3
(or it could be C. V = 3.872 cm^3) **without the image, I can't be sure, but: if there are 2 congruent (identical) prisms, it might be asking for the entire volume, which would then be 2(1.936) = 3.872 cm^3
Step-by-step explanation:
I don't have the image shown, but the unit cm^3 means you're solving for volume. The formula is V = (1/2)wlh where width=w, length=l, h=height.
This simplifies to:
V = 1.936 cm^3
Cube section 1's Volume= 9*8*3 = 216 cubic inches
Cube section 2's Volume= 7*3*15 = 315 cubic inces
216 + 315= 531 cubic inches
Hope this helps Marie
Good Luck!
There are an infinite number of solutions, so I don't plan to list them all.
I'll list two of them, and then describe how to get all of the rest.
You said that <u>2cos(x) - 1 = 0</u>
Add 1 to each side: 2cos(x) = 1
Divide each side by 2: cos(x) = 1/2
The angles whose cosine is 1/2 are 60 degrees, 300 degrees,
and any multiple of 360 degrees added to either of those.