Given:
Angles of a quadrilateral are in the ratio of 4: 9: 11: 12
Solution:
Angles of the quadrilateral be 4x, 9x, 11x, and 12x
The sum of the angles of a quadrilateral is 360°
4x + 9x + 11x + 12x = 360°
36x = 360°
x = 10°
The angles of the quadrilateral are
4x = 40°, 9x = 90°, 11x = 110°and 12x = 120°
The largest angle is 12x = 1210° = 120°.
Therefore, the largest angle is 120°.
English
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishIn the following table two columns are given. Match column A with column B.
Column A | Column B |
[a] Acute angle | [i] 90° |
[b] Obtuse angle | [ii] 240° |
[c] Right angle | [iii] 30° |
[d] Reflex angle | [iv] 120° |
How many lines of symmetry does the figure have?
Which of the following statements is false?
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The larger of two supplementary angles is 50° more than the smaller one. The smaller angle (in degree) is:
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