Some Applications of Trigonometry — Class 10 Mathematics NCERT Solutions (Free)
Free step-by-step NCERT solutions for Class 10 Mathematics chapter "Some Applications of Trigonometry" — 8 important questions with detailed answers for CBSE board exam preparation.
TL;DR: Free step-by-step NCERT solutions for Class 10 Mathematics chapter "Some Applications of Trigonometry" — 8 important questions with detailed answers f…
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Key Questions Covered:
- Define angle of elevation and angle of depression. Draw a diagram showing bot…
- A ladder 10 m long leans against a wall. The ladder makes an angle of 60° wit…
- A man standing on a level ground observes the angle of elevation to the top o…
- + 5 more questions in the full chapter
Solutions Summary:
| Question | Status |
|---|---|
| Define angle of elevation and angle of depression. Draw a… | ✓ Solved |
| A ladder 10 m long leans against a wall. The ladder makes… | ✓ Solved |
| A man standing on a level ground observes the angle of el… | ✓ Solved |
Showing 3 of 8 questions
Q1: Define angle of elevation and angle of depression. Draw a diagram showing both concepts.
Angle of Elevation:
The angle of elevation is the angle between the horizontal line of sight and the line of sight upward to an object that is above the horizontal.
When an observer looks upward at an object, the angle formed below the object's line of sight from the horizontal is called the angle ...
Q2: A ladder 10 m long leans against a wall. The ladder makes an angle of 60° with the ground. Find the height of the wall reached by the ladder and the distance of the foot of the ladder from the wall.
Given:
Length of ladder = 10 m (hypotenuse)
Angle with ground = 60°
Find:
1. Height of wall reached by ladder (opposite side)
2. Distance from wall to foot of ladder (adjacent side)
Diagram (text description):
Wall
|
| Height (h)
|/
Ladder (10 m)
/|
/ |
/...
Q3: A man standing on a level ground observes the angle of elevation to the top of a building as 30°. He walks 50 m closer to the building and observes the angle of elevation as 60°. Find the height of the building.
Given:
Initial angle of elevation = 30°
Angle of elevation after walking 50 m closer = 60°
Distance walked = 50 m
Find: Height of building
Diagram (text description):
Building (height = h)
|
|
| 60°
|/
---*--- (closer position, 50m awa...
Showing 3 of 8 questions. Visit the full page for complete solutions.