What is the measure of ∠Y? 43° 68° 86° 172°

Solution:
Here we are given the arc xz=86.
we have been asked to find the measure of angle Y.
As we know that the Inscribed angle is Half of the measure of the intercepted arc.
Here intercepted arc=86
So we can write
[tex] <y=\frac{1}{2}*86\\
\\
<y=43\\ [/tex]
Hence the value of the angle y is 43 degrees.
The measure of [tex]\angle Y[/tex] is [tex]\boxed{\angle Y = {{43}^ \circ }}[/tex]. Option (a) is correct.
Further explanation:
The angle subtended by an arc at center is double of the angle subtended by the arc at any point on the circle.
Given:
The options are as follows,
(a). [tex]\angle Y = {{43}^ \circ[/tex]
(b). [tex]\angle Y = {{68}^ \circ[/tex]
(c). [tex]\angle Y = {{86}^ \circ[/tex]
(d). [tex]\angle Y = {{172}^ \circ[/tex]
Explanation:
The central angle of the circle is [tex]{86^ \circ }.[/tex]
The [tex]\angle Y[/tex] can be obtained as follows,
[tex]\begin{aligned}\angle Y&= \frac{1}{2} \times {86^ \circ }\\&= \frac{{{{86}^ \circ }}}{2}\\&= {43^ \circ }\\\end{aligned}[/tex]
The measure of [tex]\angle Y[/tex] is [tex]\boxed{\angle Y = {{43}^ \circ }}[/tex]. Option (a) is correct.
Option (a) is correct.
Option (b) isnot correct.
Option (c) is not correct.
Option (d) is not correct.
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Answer details:
Grade: High School
Subject: Mathematics
Chapter: Polynomial
Keywords: angle, measure of Y, 43 degree, measure, arc, half, double, inscribed, subtended angle, central angle.