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True coordinates of the vertices of triangle 1 are A(6,6),B(12,9),C(9,6).rotate triangle 1,90 degrees counterclockwise

User Samson
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1 Answer

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True coordinates of the vertices of triangle 1 are A(6,6),B(12,9),C(9,6).rotate triangle 1,90 degrees counterclockwise

we have that

the rule of rotate triangle 90 degrees counterclockwise is equal to

(x,y) -------> (-y,x)

so

A(6,6) -------> A'(-6,6)

B(12,9) ----> B'(-9,12)

C(9,6) -----> C'(-6,9)

see the attached figure to better understand the problem

(give me a minute to draw the figure)

Problem N 2

we have

it is translating tree units to the right and 5 units down

the rule is

(x,y) ------> (x+3,y-5)

so

A(6,6) ------->A'(6+3,6-5)

A'(9,1)

B(12,9) ---->B'(12+3,9-5)

B'(15,4)

C(9,6) ----->C'(9+3,6-5)

C'(12,1)

True coordinates of the vertices of triangle 1 are A(6,6),B(12,9),C(9,6).rotate triangle-example-1
User Jonathan Barbero
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