2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is Calculate the cosine of this angle to 4 decimal places.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter10: Measurement, Area, And Volume
Section10.1: Triangles
Problem 29E
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2. The cosine of an obtuse angle is -0.78.
Calculate the sine of this angle to 4 decimal places.
5
$19.
9°
Calculate the cosine of this angle to 4 decimal places.
3. The tangent of an obtuse angle is
diooted length?
Transcribed Image Text:2. The cosine of an obtuse angle is -0.78. Calculate the sine of this angle to 4 decimal places. 5 $19. 9° Calculate the cosine of this angle to 4 decimal places. 3. The tangent of an obtuse angle is diooted length?
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