It will take 250 seconds for it to reach the bottom. To find this I did 17.5 divided by .07.
Answer:
80 ft²
Step-by-step explanation:
From the diagram
The umbrella has a total of 8 triangle.
Applying
A = 8(bh)/2
A = 4bh...................... Equation 2
Where A = Amount of fabric, b = base of one of the triangle in the octagonal pyramid, h = height of the triangle.
From the diagram,
Given: b = 4 ft, h = 5 ft
Substitute these values into equation 2
A = 4×4×5
A = 80 ft²
Answer: I'm pretty sure that it is D. Great circle
Step-by-step explanation:
Because of the vertical angles theorem, BAC becomes 50°. And angle B is 180-(50+30)=100.
If all 3 triangles are similar, the angles of triangle EFG are 30°, 50°, 100°
