Circle Theorms Flashcards

Learn to recognise circles!

1
Q

The angle between radius & the tangent is always…

A

90°

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2
Q

What is the angle is a semi-circle?

A

90°

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3
Q

The angle at the _______ is _______ the angle at the ________.

A
  • center
  • twice
  • circumference
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4
Q

Angles subtended at the circumference in the segment are…

A

equal

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5
Q

In a cyclic quadriateal, opposite angles add to

A

180°

a + b =180°

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6
Q

angles in an ______________ are equal

A

alternate segment

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7
Q

you only know a line is the diameter if

A

it goes through the origin

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8
Q

angles betweent the radius and tangent is

A

90°

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