A 10-foot ladder is leaning against a tree. The bottom of the ladder is 4 feet away from the bottom of the tree. Approximately how high up the tree does the top of the ladder reach?

A.
2.4 feet

B.
6 feet

C.
9.2 feet

D.
10.8 feet

Question

A 10-foot ladder is leaning against a tree. The bottom of the ladder is 4 feet away from the bottom of the tree. Approximately how high up the tree does the top of the ladder reach?
 
 
 A.
2.4 feet
 
 B.
6 feet
 
 C.
9.2 feet
 
 D.
10.8 feet

anonymous · Answer

in this problem
ladder is hypotunes      c           10 ft
distance frm tree           b          4 ft
and hieght of tree          a           x
by pethagoras theoram 
c^2= a^2 +b^2
a^2 = c^2 - b^2 
a^2 = 10^2 - 4^2