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English 13 Public

Parts of a circle and its Theorem

Study Slideshow

An inscribed angle is a right angle if it intercepts a __________.

Semicircle

What angle has its vertex on a circle and has sides that contain chords of the circle?

Inscribed angle

Given circle 𝐴, what kind of arc is 𝐷𝑀𝑌 ̂ if 𝐷𝑌̅̅̅̅ is a diameter?

Semicircle

Given circle 𝐴 with semicircle 𝑌𝑆𝐷 ̂ and 𝑚∠𝑆𝐴𝐷 = 70, what is the measure of ∠𝑆𝐴𝑌?

110

Suppose 𝑅𝑆̂ = 95°, what must be added to its measure to make a semicircle?

What part is used to name a circle?

Center

What angle has a vertex on the center of the circle and sides that are radii of that circle?

Central Angle

It is a segment whose endpoints are the center and a point on the circle.

Radius

It is a line segment that has its endpoints on the circle.

Chord

∠𝐴𝐺𝐹 intercepts 𝐴𝐻𝐹 ̂ . TRUE OR FALSE

False

∠𝐷𝐺𝐹 intercepts 𝐷𝐹̂ . TRUE OR FALSE

TRUE

What is the measure of 𝐷𝐹̂ if ∠𝐷𝐶𝐴 = 10° and ∠𝐴𝐸𝐹 = 40°

What is the measure of 𝑋𝑊𝑌 ̂?

240