A pendulum travels 30 inches on it’s first swing. During each of its subsequent swings, its travels 90 percent of the previous s
wing. I didn’t see all parts to the question on here so I did it.
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
we know that
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
see the attached figure to better understand the problem
so
∠DEF=∠ECD+∠CDE
substitute the given values
solve for x
Combine like terms
Group terms
Find the measure of angle CDE
substitute the value of x
Answer:
The area of the sector is
Step-by-step explanation:
we know that
The area of a complete circle (16π units^2) subtends a central angle of 2π radians
so
using proportion
Find out the area of a sector , if the central angle is equal to 8π/5 radians