Which equation can be used to find the measure of angle gfe?

the complete question is Which equation can be used to find the measure of angle GFE? cos−1[14.5/11.9 ]= θ cos−1[11.9/14.5] = θ sin−1[11.9/14.5] = θ sin−1[14.5 /11.9]= θ we know that in the right triangle FGE cos θ=adjacent side angle θ /hypotenuse adjacent side angle θ=FE———> hypotenuse=FG——–> so cos θ= θ=arc cos() therefore the answer is the option cos−1[] = θ

answer is B on edge Step-by-step explanation: hope this helps!!!

The equation can be used to measure . Further explanation: Given: The value of GF is . The value of EF is . The measurement of is . The measurement of is . Calculation: The is , it means that the is a right angle triangle. The hypotenuse of the is GF. The base of the is EF. The cosine of the angle is defined as the ratio of the adjacent side of angle and hypotenuse of the . The adjacent side of angle is EF.      …… (1) Substitute for EF and for GF in equation (1) to obtain the value of as follows: Now obtain the value of by taking inverse. Further solve the above equation to obtain the value of as follows: Therefore the equation can be used to measure . Thus, the equation can be used to measure . Learn more: 1. Definition of Angle 2. Angle Answer details: Grade: High school Subject: Mathematics Chapter:Trigonometry Keywords:  cos^{-1}( 11.9/14.5)=theta, theta=cos ^{-1}(0.820), Angle, Equation, Triangle, hypotenuse, Base, adjacent,  cosine, trigonometry, right angle Triangle, Measure.

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) Step-by-step explanation: From the diagram, . The side of the triangle with length 11.9 is adjacent to the given angle. We also know the hypotenuse to be 14.5 units. We therefore use the cosine ratio to get; We take the inverse cosine of both sides to get; )