Answer:
2 pi
Step-by-step explanation:
The radius is 2
The area of a circle is
A = pi r^2
We have 1/2 of a circle so
1/2 A = 1/2 pi r^2
=1/2 pi ( 2)^2
=1/2 pi *4
= 2 pi
Plug n = 14 into the formula
= -5(14) + 90
= -70 + 90 = 20
=(5x+4)°
=(2x-2)°
=(4x-6)°
we know that,
=+
According to the question,
so,
=(4x-6)°=(4×12-6)°=(48-6)°=42°
Answer:
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Step-by-step explanation: