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If r and t are the measures of two acute angles so that r + t = 90° , then cos r equals: (1) sin(90° - t) (2) sin(t + 90°) (3) sin(t - 90°) (4) sin t
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Mar 16, 2022
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If r and t are the measures of two acute angles so that r + t = 90° , then cos r equals:
(1) sin(90° - t)
(2) sin(t + 90°)
(3) sin(t - 90°)
(4) sin t
Mathematics
middle-school
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The answer is 3 okomokko
Pavel Katiushyn
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Mar 23, 2022
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Pavel Katiushyn
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