14.76 divides by 3 equals 16.2533
A regular decagon has 10 equal sides. An apothem is a perpendicular bisector to the side. This means 2 equal right triangle are formed on each side (20 equal right triangles) or 10 equal isosceles triangles.
Using the 10 equal isosceles triangles and A = .5(base)(height)
Base is a side and height is apothem
Area of regular decagon = 10 × .5 × 8 × 12.3 = 492.0 yd²
Answer: 492.0 yd²
Answer:
880
Step-by-step explanation:
the train travels=220km in 4 hours
therefore, multiply 220 and 4
=220 x 4 = 880
so, the train travels 880 km in 9 hours
HAVE A GREAT DAY!
The answer to that would be 48
Answer:
All I know is that R is definitely 123, but thats all I have
Step-by-step explanation:
