Answer:
Cardioid and Radian
Step-by-step explanation:
Answer:
Cost, C = $28410.72
Step-by-step explanation:
We have, a concrete pillar has the shape of a cylinder.
Diameter of pillar is 8 m and ts height is 9 m
If concrete costs $87 per cubic meter, it is required to find the concrete cost for the pillar. For this lets find the area of cylindrical shape. So,

The cost of pillar at the rate of $87 per cubic meter will be :

Triangle:
39 degrees, 33 degrees, 108 degrees
Side opposite the 108 degrees is 360 feet.
length asked for is d
Hope this helped you! Brainliest? :)
I forgot that but good luck