B. Solve the following problems. 1) A convex heptagon has angles whose measures are 151°, 140°, 102°, 167º, and 110°. Find the measure of the 7th angle. re
2) The measures of the interior angles of a quadrilateral are x°, (2x + 18)°, (10x + 9), and (13x - 5)º. a. Find the value of x. b. Find the measure of the smallest angle. c. Find the measure of the largest angle.
3) Five angles of a convex octagon measures 130°, 145º, 155°, 170°, and 200°. If the measures of the two remaining angles are congruent and the third angle measures thrice its measure, find the measures of the remaining angles
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2) The measures of the interior angles of a quadrilateral are x°, (2x + 18)°, (10x + 9), and (13x - 5)º. a. Find the value of x. b. Find the measure of the smallest angle. c. Find the measure of the largest angle.
3) Five angles of a convex octagon measures 130°, 145º, 155°, 170°, and 200°. If the measures of the two remaining angles are congruent and the third angle measures thrice its measure, find the measures of the remaining angles
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Answer:
1. 50°
2. A. x=13
B. 13°
C. 164°
3. 56°
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