A man stands 9 metres from the base of a tree. He knows the distance from where he is standing and the top of the tree is 15 metres. How tall is the tree?

a2 + b2 = c2

a : 9       b : unknown      c: 15

b=c- a2

so b2 = 225 - 81

=144 so b=12

Answered by Jack M. Maths tutor

2718 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What is 3.25 plus 3 and 3/4?


How do you expand brackets?


Re-arrange [4x+ 9t + 8s= 3g] to make x the subject of the formula


How would I simplify this? (x-2)(x+3)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences