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Are the given triangles similar?

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Question

Are the given triangles similar?

The image displays two triangles positioned side-by-side with labeled side lengths and angle measures. It features a left triangle with sides $3x$ and $4x$ alongside a right triangle with sides $6y$ and $4.5y$ for triangle similarity and proportion calculations.

Options

  • Yes

  • No

  • None of these

MCQ
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Solution

Yes

Explanation:

As we know that sum of all angles of a triangle is 180°.

In first triangle,

⇒ 65° + 55° + third angle = 180°

⇒ 120° + third angle = 180°

⇒ third angle = 180° − 120°

⇒ third angle = 60°

In second triangle,

⇒ 65° + 70° + third angle = 180°

⇒ 135° + third angle = 180°

⇒ third angle = 180° − 135°

⇒ third angle = 45°

Since, the in the given triangles neither corresponding angles are equal nor their corresponding sides are in proportion.

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Chapter 15: Similarity (With Applications to Maps and Models) - EXERCISE 15 (A) [Page 214]

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Selina Concise Mathematics [English] Class 10 ICSE
Chapter 15 Similarity (With Applications to Maps and Models)
EXERCISE 15 (A) | Q 1. (b) | Page 214
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