The radius of a circle is 5 kilometers. What is the length of a 90° degree arc?

s =5*π/2 km

Step-by-step explanation:

arc length s =  rθ

where θ =central angle in radians

r = 5km

θ = 90 degrees = 90 degrees/360degrees * 2π = (2π) = π/2

s =5*π/2 km

56

step-by-step explanation:

x = 17

step-by-step explanation:

in the given figure, two triangles are inscribed in a circle where ∠bae ≅ ∠dae which makes the side be and de equal so we can write it as:

3x - 24 = x + 10

solving this equation for x to get:

3x - x = 10 + 24

2x = 34

x = 34/2

x = 17

therefore, the value of x = 17.