Refer to the figure on the right. An antenna pole is supported by wires pegged to the ground. Point Cis 6.3 meters from the base of the pole, Point B is 5.2 meters from the base of the pole, and the length of wire AC is 7.8 meters. Assume that the pole forms a right angle with the ground. Determine the measure of angle ACB in degrees. (Round your answer to two decimal places.) C

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