Hey there!
I think that it safe to say that this room is a rectangular prism. Therefore, the top and bottom (floor and ceiling) have the same area. We see that our floor dimensions are 12 cm long and 7 cm wide. This also applies to the ceiling. Let’s take our two sides and multiply then to find our area.
12(7)=84
Therefore, the area is 84 square centimeters.
I hope that this helps!
Answer:
the 4th and 6th one
Step-by-step explanation:
A function is when there are x- and y-values but each x value has only 1 y-value
Simple: If the x-value is repeated its not a function
Answer:
CD = 20°
Step-by-step explanation:
arc FA = arc CD because <ABF = <CBD (vertical angles)
Given <ABF = 20° so <ABF = <CBD = 20°
The central angle is also known as the arc's angular distance
so arc CD = <CBD = 20°
