Step-by-step explanation:
Length of arc of a circle is given as:

Thus, the measure of central angle is 140°.
Answer:
n=5, n^2 = 36 now
Step-by-step explanation:
Answer:
Talib is correct i think
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
Using the sine ratio on right triangle KJL
and the exact value sin30° = 
sin30° =
=
=
=
( cross- multiply )
2JL = 8
( divide both sides by 2 )
JL = 4
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Using the sine ratio in right triangle JLM
and the exact value sin45° = 
sin45° =
=
=
=
( cross- multiply )
x ×
= 4
( divide both sides by 
x = 4
Answer:
z=0
x= -5
y=4
Step-by-step explanation:
Check the attachment please
Hope this helps :)