CBSE Class 10 Answered
If two crows are sitting at a height of 15 m and 10 m on different trees vertically opposite to each other. They view a vaddi (an estable) on the ground at a angle of depression 45°and 60° respectively. They start at the same time and fly at the same speed along the shortest path to pick up the vadai.Which bird will succeed in it.?
Asked by urzashu7818 | 15 Jan, 2021, 12:52: PM
![tan 45 equals fraction numerator P A over denominator A B end fraction
A B equals 15
tan 60 equals fraction numerator Q C over denominator B C end fraction
square root of 3 equals fraction numerator 10 over denominator B C end fraction
B C equals fraction numerator 10 over denominator square root of 3 end fraction
P B equals square root of 15 squared plus 15 squared end root
equals 15 square root of 2
Q B equals square root of 10 squared plus open parentheses fraction numerator 10 over denominator square root of 3 end fraction close parentheses squared end root
Q B equals fraction numerator 20 over denominator square root of 3 end fraction
H e r e fraction numerator 20 over denominator square root of 3 end fraction less than 15 square root of 2
H e n c c e space t h e space b i r d space s i t t i n g space a t space 10 space m space t o w e r space w i l l space s u c c e e d](https://images.topperlearning.com/topper/tinymce/cache/c28d7e937ec64ea58b5772c613e0d3a8.png)
Answered by Utkarsh Lokhande | 15 Jan, 2021, 15:58: PM
Application Videos
Concept Videos
CBSE 10 - Maths
Asked by swetalinasamantaray022 | 21 Mar, 2023, 16:15: PM
CBSE 10 - Maths
Asked by badakhsharda | 14 Apr, 2022, 08:57: AM
CBSE 10 - Maths
Asked by naancysingh | 09 Apr, 2022, 19:07: PM
CBSE 10 - Maths
Asked by vy499292 | 23 Jan, 2022, 20:04: PM
CBSE 10 - Maths
Asked by urzashu7818 | 15 Jan, 2021, 12:52: PM
CBSE 10 - Maths
Asked by arindeep.singh | 11 Sep, 2020, 14:41: PM
CBSE 10 - Maths
Asked by debeswar32 | 06 Aug, 2020, 10:55: AM
CBSE 10 - Maths
Asked by ahmadaarif199 | 24 Jul, 2020, 14:58: PM