Find the area of the rectangle 9mm and 16mm?
2 answers:
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Answer:
see explanation
Step-by-step explanation:
The length of the arc is calculated as
AB = circumference of circle × fraction of circle
(11)
AB = 2πr ×
= 2π × 7 ×
= 14π ×
= π in
(12)
AB = 2πr × ( r = 20 ÷ 2 = 10 )
= 2π × 10 ×
= 20π ×
= π
= π cm
Answer:
Step-by-step explanation:
Angle E is one-half the measure of the difference between arc CG and arc DF. Mathematically, that looks like this:
and
44(2) = 160 - DF and
88 = 160 - DF and
-72 = -DF so
DF = 72 degrees, second choice down