## Related questions with answers

Question

Let ∠D be and acute angle. Use a calculator to approximate the measure of ∠D to the nearest tenth of a degree. cos D = 0.64

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 2Determine the measure of the given angle.

$\begin{align*} \cos D &= 0.64 && \text{Write the angle}\\ \angle D &= \cos^{-1}(0.64) && \text{Use inverse cosine}\\ \angle D &\approx 50.2\text{\textdegree} && \text{Evaluate using calculator} \end{align*}$

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