Math Problem Statement

Test I - Instructions: Give what are asked in each box where specific measure of angle of an irregular polygon is missing. Provide your solution to the right-side space of each box for additional points.

Number of sides (n):

Sum of interior angles

(S

Measure of x°:

Solution:

154°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

125°

1179

68°

79°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

0124160°

0120°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

118°

124°

140°

148° x°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

147°

102°

10° C

128

138

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

118°

150°

124°

80°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

122°

130°

130°

130°

138°

128°

Number of sides (n):

Sum of interior angles (S):

Measure of x°:

Solution:

130°

125°

160°

150°

150°

120°

140°

Solution

Thank you for sharing the details. Let's go through each of these problems step by step to find the solutions. For each problem, we will:

  1. Determine the number of sides of the polygon (nn).
  2. Calculate the sum of the interior angles (SS).
  3. Solve for the missing angle xx^\circ.

Problem 1:

  • Number of sides (n):
    • It seems this polygon is not explicitly named, so count the angles or sides if there’s a diagram. However, based on standard geometry, we can consider specific cases such as pentagons, hexagons, etc.
  • Sum of interior angles (S):
    • Use the formula: S=(n2)×180S = (n - 2) \times 180^\circ.
  • Measure of xx^\circ:
    • To find xx, sum the given angles and subtract from the total sum of interior angles SS.

Problem 2:

Given angles are 125°, 117°, 79°, 68°.

  • Number of sides (n): 5 (assuming it's a pentagon)
  • Sum of interior angles (S): S=(52)×180=540S = (5 - 2) \times 180^\circ = 540^\circ.
  • Measure of xx^\circ:
    • x=540(125+117+79+68)x^\circ = 540^\circ - (125^\circ + 117^\circ + 79^\circ + 68^\circ)
    • x=540389=151x^\circ = 540^\circ - 389^\circ = 151^\circ

Problem 3:

Given angles are 140°, 148°, 124°, 118°.

  • Number of sides (n): 5 (assuming it's a pentagon)
  • Sum of interior angles (S): S=540S = 540^\circ.
  • Measure of xx^\circ:
    • x=540(140+148+124+118)x^\circ = 540^\circ - (140^\circ + 148^\circ + 124^\circ + 118^\circ)
    • x=540530=10x^\circ = 540^\circ - 530^\circ = 10^\circ

Problem 4:

Given angles are 118°, 150°, 124°, 80°.

  • Number of sides (n): 5 (assuming it's a pentagon)
  • Sum of interior angles (S): S=540S = 540^\circ.
  • Measure of xx^\circ:
    • x=540(118+150+124+80)x^\circ = 540^\circ - (118^\circ + 150^\circ + 124^\circ + 80^\circ)
    • x=540472=68x^\circ = 540^\circ - 472^\circ = 68^\circ

Problem 5:

Given angles are 122°, 130°, 130°, 130°, 138°, 128°.

  • Number of sides (n): 7 (assuming it's a heptagon)
  • Sum of interior angles (S): S=(72)×180=900S = (7 - 2) \times 180^\circ = 900^\circ.
  • Measure of xx^\circ:
    • x=900(122+130+130+130+138+128)x^\circ = 900^\circ - (122^\circ + 130^\circ + 130^\circ + 130^\circ + 138^\circ + 128^\circ)
    • x=900778=122x^\circ = 900^\circ - 778^\circ = 122^\circ

Problem 6:

Given angles are 130°, 125°, 160°, 150°, 150°, 120°, 140°.

  • Number of sides (n): 8 (assuming it's an octagon)
  • Sum of interior angles (S): S=(82)×180=1080S = (8 - 2) \times 180^\circ = 1080^\circ.
  • Measure of xx^\circ:
    • x=1080(130+125+160+150+150+120+140)x^\circ = 1080^\circ - (130^\circ + 125^\circ + 160^\circ + 150^\circ + 150^\circ + 120^\circ + 140^\circ)
    • x=1080975=105x^\circ = 1080^\circ - 975^\circ = 105^\circ

Summary of Answers:

  1. xx^\circ depends on the first missing data—let me know how many sides there are.
  2. x=151x^\circ = 151^\circ
  3. x=10x^\circ = 10^\circ
  4. x=68x^\circ = 68^\circ
  5. x=122x^\circ = 122^\circ
  6. x=105x^\circ = 105^\circ

Let me know if you need any additional details, or if you'd like to clarify or check any specific part of this.

Tip: Always double-check how many sides each polygon has to ensure the accuracy of your calculations.

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Math Problem Analysis

Mathematical Concepts

Geometry
Polygon Properties
Interior Angles

Formulas

Sum of interior angles formula: S = (n - 2) * 180°

Theorems

-

Suitable Grade Level

High School