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A DeltaABC is right angled at A. L is a ...

A `Delta``ABC` is right angled at `A`. `L` is a point on `BC` such that `AL``bot` `BC`. Prove that `/_BAL = /_ACB`.

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To prove that ∠BAL = ∠ACB in triangle ABC, where triangle ABC is right-angled at A and AL is perpendicular to BC, we can follow these steps: ### Step 1: Identify the Angles We know that triangle ABC is right-angled at A, which means: \[ \angle BAC = 90^\circ \] Let’s denote: ...
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NCERT EXEMPLAR ENGLISH-LINES AND ANGLES -MULTIPLE CHOICE QUESTIONS
  1. Two adjacent angles are equal. Is it necessary that each of these angl...

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  2. If one of the angles by two intersecting lines is a right angles, what...

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  3. In the figure, which of the two lines are parallel and why ?

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  4. Two lines l and m , are perpendicular to the same line n. Are l and m...

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  5. In the figure, OD is the bisector of /AOC, OE is the bisector of /BOC ...

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  6. In the figure, /1 =60^(@) and /6 =120^(@) Show that the lines m and n ...

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  7. AP and BQ are the bisectors of the two alternate interior angles forme...

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  8. In the given figure, bisectors AP and BQ of the alternate interior ang...

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  9. In the figure, BA|""| ED and BC|""| EF. Show that /ABC = /DEF.

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  10. In the figure, BA || ED and BC || EF. Show /ABC + /DEF = 180^(@).

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  11. In the figure, DE |""| QR, AP and BP are bisectors of /EAB and /RBA, r...

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  12. A DeltaABC is right angled at A. L is a point on BC such that ALbot BC...

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  13. Two lines are respectively perpendicular to two parallel lines. Show ...

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  14. If two lines intersect prove that the vertically opposite angles are ...

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  15. Bisectors of interior / B and exterior / ACD of a Delta ABC intersect ...

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  16. A transversal intersects two parallel lines. Prove that the bisectors ...

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  17. Prove that through a given point, we can draw only one perpendicular ...

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  18. Prove that two lines that are respectively perpendicular to two inters...

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  19. prove that triangle must have atleast two acute angle

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  20. If PS is the bisector of /Q P R and P T|Q R . Show that /T P S=1/2(/Q...

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