Β A vertical stick 20m long casts a shadow 10m long on the ground. At the same time a tower casts a shadow 50m long. What is the height of the tower?
(a) 30m Β (b) 50m Β (c) 80m Β (d) 100m
Last updated at Sept. 9, 2021 by
Transcript
Question 39 A vertical stick 20m long casts a shadow 10m long on the ground. At the same time a tower casts a shadow 50m long. What is the height of the tower? (a) 30m (b) 50m (c) 80m (d) 100m Since the triangles are similar Their sides are proportional (π―πππππ ππ πππππ)/(π³πππππ ππ ππππ ππ ππ πππππ)=(π―πππππ ππ π»ππππ)/(π³πππππ ππ ππππ ππ ππ π»ππππ) 20/10=(π―πππππ ππ π»ππππ)/50 2 =(π»πππβπ‘ ππ πππ€ππ)/50 2 Γ 50 = Height of tower Height of tower = 100 m So, the correct answer is (d)
CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]
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CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]
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