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A rectangular MORE is shown below: Answer the following questions by giving appropriate reason. Is RE = OM? Is ∠MYO = ∠RXE? Is ∠MOY = ∠REX? Is ΔMYO ≅ ΔRXE? Is MY = RX? - Mathematics

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Question

A rectangular MORE is shown below:


Answer the following questions by giving appropriate reason.

  1. Is RE = OM?
  2. Is ∠MYO = ∠RXE?
  3. Is ∠MOY = ∠REX?
  4. Is ΔMYO ≅ ΔRXE?
  5. Is MY = RX?
Sum

Solution

i. Yes, RE = OM

Given, MORE is a rectangle.

Therefore, opposite sides are equal.

ii. Yes, ∠MYO = ∠RXE

Here, MY and RX are perpendicular to OE.

Since, ∠RXO = 90°

⇒ ∠RXE = 90° and ∠MYE = 90°

⇒ ∠MYO = 90°

iii. Yes, ∠MOY = ∠REX

∵ RE || OM and EO is a transversal.

∴ ∠MOE = ∠OER   ...[∵ Alternative interior angles]

⇒ ∠MOY = ∠REX

iv. Yes, ∆MYO ≅ ∆RXE

In ∆MYO and ∆RXE

MO = RE   ...[Proved in (i)]

∠MOY = ∠REX   ...[Proved in (iii)]

∠MYO = ∠RXE   ...[Proved in (ii)]

∴ ∆MYO = ∆RXE  ...[By AAS]

v. Yes, MY = RX

Since, these are corresponding parts of congruent triangles.

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Chapter 5: Understanding Quadrilaterals and Practical Geometry - Exercise [Page 157]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 5 Understanding Quadrilaterals and Practical Geometry
Exercise | Q 152. | Page 157

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