IEO Level 2- English Olympiad (SOF) Class 4 Coaching Programs
β³ π― Online Tests (3 Tests [35 Questions Each]): NTA Pattern, Analytics & Explanations
Click Here to View & Get Complete Material
Rs. 210.00
3 Year Validity (Multiple Devices)
π Study Material (101 Notes): 2024-2025 Syllabus
Click Here to View & Get Complete Material
Rs. 250.00
3 Year Validity (Multiple Devices)
π― 240 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Click Here to View & Get Complete Material
Rs. 200.00
3 Year Validity (Multiple Devices)
CBSE Class 10 - Mathematics: Chapter β 6 Triangles Part 16
Question 19:
A ladder reaches a window which is above the ground on one side of the street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window high. Find the width of the street if the length of the ladder is .
Answer:
Let AB be the width of the street and be the foot of ladder.
Let D and E be the windows at heights and respectively from the ground.
In , right angled at A, we have
In , right angled at B, we have
Hence, width of the street
Question 20:
In figure, , if the area of is , then find the area of the quadrilateral PYZQ.
Answer:
Given
In , we have
We have
Substituting in (i) , we get
Area of quadrilateral