Answer:
Step-by-step explanation:
we know that
Triangles ABM and CDN are congruent
so
CD=AB
AB=2AL ----> because the diameter divide the circle into two equal parts
CQ=AL=140/2=70 units
NC----> is the radius
NC=148/2=74 units ----> the radius is half the diameter
Applying Pythagoras Theorem find the value of NQ
substitute the values
Answer:
I think 60 because say u do 2×3 you get 6 but do 20×3 and it's 60 so I think it's 60 so sorry if I'm wrong.
2/4 is equal to 3/6 because they both are equal to 1/2
Answer:
r = 40/π exact answer
r = 12.7 decimal approximation
Step-by-step explanation:
arc length formula
s = (∅/360) * 2πr
s = (∅/180) * πr
--------------------------------
Plug in the givens
10 = (45/180) * πr
10 = .25πr
Divide both sides by .25
40 = πr
divide both sides by π
40/π = r
r = 40/π exact answer
r = 40/3.14
r = 12.7 decimal approximation
