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Maharashtra State BoardSSC (English Medium) 9th Standard

If opposite angles of a rhombus are (2x)° and (3x - 40)° then value of x is ______.

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Question

If opposite angles of a rhombus are (2x)° and (3x - 40)° then value of x is ______.

Options

  • 100°

  • 80°

  • 160°

  • 40°

MCQ
Fill in the Blanks
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Solution

If opposite angles of a rhombus are (2x)° and (3x - 40)° then value of x is 40°.

Explanation:

A rhombus is also a parallelogram so, the opposite angles will be congruent.

Thus, (2x)° = (3x - 40)°

3x - 2x = 40°

x = 40°

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Chapter 5: Quadrilaterals - Problem Set 5 [Page 74]

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Balbharati Mathematics 2 [English] Standard 9 Maharashtra State Board
Chapter 5 Quadrilaterals
Problem Set 5 | Q 1. (iii) | Page 74

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