Answer:
The length of AB is 7.45 units.
Step-by-step explanation:
You can find the length of AB using Cosine Rule, cosθ = adj./hypo. :
θ = 20°
adj. = 7 units
hypo. = AB
cos 20° = 7/AB
AB = 7/cos 20°
= 7.45 units (3s.f)
Tangent is a line that touches the circle at one point going infintiely in both directions
chord is a line that goes from one side of the circle to the other and stays inside the circle, an example would be the diameter which is the longest chord in the circle
secant is a line that goes through the circle at 2 points, it's like a chord but it extends outside the circle
arc length is a section of the circumference
it's like the length of the crust when you cut a slice of pie or the crust of a pizza
Answer:
A. 5.19 units
Step-by-step explanation:
Given:
- = 81°
- Arc length = 7.34 units
Substituting given values into the equation and solving for r:
Answer: Infinity solution
Step-by-step explanation:
6x + 30 + 4x = 10x + 30
10(x + 3) = 10x + 30
10x + 30 = 10x + 30
Answer:
5.5
Step-by-step explanation: