What is 84 = x ? and how to get the answer
1 answer:
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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
See the attached picture to better understand the problem
we know that
in the right triangle ABC
sin 63°=AB/BC
AB is the opposite side angle 63-----> x cm
BC is the hypotenuse-----> 85 cm
AB=BC*sin 63°-----> AB=85*sin 63-----> AB=75.736 cm
AB=75.8 cm
the answer is
the value of x is 75.8 cm
we know that
in the right triangle ABC
sin 63°=AB/BC
AB is the opposite side angle 63-----> x cm
BC is the hypotenuse-----> 85 cm
AB=BC*sin 63°-----> AB=85*sin 63-----> AB=75.736 cm
AB=75.8 cm
the answer is
the value of x is 75.8 cm