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Robert A. Alberty was born in 1921.

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Robert A. Alberty was born in 1921.

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German actor Karl-Otto Alberty is 84 years old (born November 13, 1933).

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(b+h)(b+h)= b2+2hb+h2.

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b/h

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There is no figure given!!!!

However,

In a triangle the three angles are A B & 90 degrees.

The sides opposite to A,B, & 90 are 'a' , 'b' & 'h' respectively.

Hence Sin A = a/h

SinB = b/h

CosA = a/h ( Check ; 'a/h')

Csc B ( CosecantB) = 1/ (a/h) = h/a

CotB = CosB / SinB = (a/h) / (b/h) = a/b

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Geometry

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Points A B and C are collinear How many lines are determined by A B and C

Which pairs of angles are formed by two intersecting lines

What kind of lines are in the same plane and are not parallel

Which of these is determined by three points that are not on the same line

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