3 years ago

Find the value of x. A. 51 B. 76.25 C. 129 D. 25.25

Mathematics

1 answer:

Lunna [17]3 years ago

6 0

Answer:

$\Huge \boxed{\mathrm{C. \ 129 }}$

Step-by-step explanation:

Apply : Angles of Intersecting Chords Theorem

m∠x is half the sum of the measure of the arcs intercepted by the angle and its vertical angle.

m∠x = 1/2(54+204)

Add numbers in brackets.

m∠x = 1/2(258)

Expand brackets.

m∠x = 129

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