Answer:
A
Step-by-step explanation:
The opposite rectangular faces of the cuboid are congruent, thus
Surface area = 2(7 × 3) + 2(7 × 4) + 2(3 × 4) = 42 + 56 + 24 = 122 in² → A
Answer:
51232
Step-by-step explanation:
This is a good problem for your calculator.
The answer is 145 divided by tan 65 degrees.
Since the equation for tangent is opposite/adjacent, you can just plug the numbers in.
tan(65)=145/x (x being the height that you are trying to find)
tan(65) * x = 145
Then divide tan(65) to isolate the x and you get:
145/tan(65)
Hope this helps!
