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Chapter 15

Triangles — Statement I-II Type Questions

Class - 6 Concise Mathematics Selina



Statement I-II Type Questions

Question 11

Statement 1: In the given figure, P is mid-point of side BC, then AP is a median of triangle ABC.

Statement 1: In the given figure, P is mid-point of side BC, then AP is a median of triangle ABC. Statement 2: Every triangle has three sides so three medians. For this reason, BQ and CR are also medians of △ABC. Which of the following options is correct? Triangles, Mathematics Solutions ICSE Class 6.

Statement 2: Every triangle has three sides so three medians. For this reason, BQ and CR are also medians of △ABC.

Statement 1: In the given figure, P is mid-point of side BC, then AP is a median of triangle ABC. Statement 2: Every triangle has three sides so three medians. For this reason, BQ and CR are also medians of △ABC. Which of the following options is correct? Triangles, Mathematics Solutions ICSE Class 6.

Which of the following options is correct?

  1. Both the statements are true.

  2. Both the statements are false.

  3. Statement 1 is true, and statement 2 is false.

  4. Statement 1 is false, and statement 2 is true.

Answer

A median of a triangle is the line joining a vertex to the mid-point of the opposite side. Since P is the mid-point of BC, AP joins vertex A to the mid-point of the opposite side, so AP is a median. Thus, statement 1 is true.

Every triangle has three vertices and three sides, so it has three medians. As Q and R are the mid-points of AC and AB respectively, BQ and CR are also medians of △ABC. Thus, statement 2 is true.

Hence, option 1 is the correct option.

Question 12

Statement 1: In the given figure, AP is altitude corresponding to side BC and CR is altitude corresponding to side AB then BQ is altitude corresponding to side AC.

Statement 1: In the given figure, AP is altitude corresponding to side BC and CR is altitude corresponding to side AB then BQ is altitude corresponding to side AC. Statement 2: Altitudes of a triangle intersect each other at the same point. Which of the following options is correct? Triangles, Mathematics Solutions ICSE Class 6.

Statement 2: Altitudes of a triangle intersect each other at the same point.

Which of the following options is correct?

  1. Both the statements are true.

  2. Both the statements are false.

  3. Statement 1 is true, and statement 2 is false.

  4. Statement 1 is false, and statement 2 is true.

Answer

From the right-angle marks in the figure,

AP ⊥ BC, CR ⊥ AB and BQ ⊥ AC.

Therefore, AP, CR and BQ are the three altitudes of △ABC. Thus, statement 1 is true.

The three altitudes of a triangle are concurrent, i.e. they pass through the same point. Thus, statement 2 is true.

Hence, option 1 is the correct option.

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