Subscribe to our Youtube Channel - https://you.tube/teachoo

Last updated at May 29, 2018 by Teachoo

Transcript

Ex 6.5, 10 A guy wire attached to a vertical pole of height 18 m is 24 m long and has a stake attached to the other end. How far from the base of the pole should the stake be driven so that the wire will be taut? Given: Let Height of vertical pole = AB = 18 m Let length of wire = AC = 24 m To Find : Distance from the base of the pole to the another end of the wire i.e. (BC) Solution Since the pole will be perpendicular (vertical) to ground ABC = 90 ABC is a right angle triangle So, in right angle triangle ABC Using Pythagoras theorem (Hypotenuse)2 = (Height)2 + (Base)2 (AC)2 = (AB)2 + (BC)2 (24)2 = (18)2 + (BC)2 576 = 324 + BC2 576 324 = BC2 252 = BC2 BC2 = 252 BC = 252 BC = (36 7) BC = (6 6 7) BC = (6 6) 7 BC = (62 ) 7 BC = 6 7 Hence , the stake may be placed at distance (BC) = 6 7 m, from the base of the pole .

Ex 6.5

Ex 6.5, 1

Ex 6.5, 2 Important Not in Syllabus - CBSE Exams 2021

Ex 6.5, 3 Important Not in Syllabus - CBSE Exams 2021

Ex 6.5, 4

Ex 6.5, 5

Ex 6.5, 6

Ex 6.5, 7

Ex 6.5, 8 Important

Ex 6.5, 9

Ex 6.5, 10 You are here

Ex 6.5, 11 Important

Ex 6.5, 12 Important

Ex 6.5, 13

Ex 6.5, 14

Ex 6.5, 15 Important

Ex 6.5, 16

Ex 6.5, 17

Chapter 6 Class 10 Triangles

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.