Asked by DURAID
a washing line is attached at points A and B on two vertical posts standing horizontal ground. Point A is 2.1 meters above the ground on one post. Point Bis 7.1 meters above the ground on the other post. The horizontal distance between the two posts is 6 meters. Calculate the distance AB
Answers
Answered by
nile
difference of points= 7.1m-2.1m= 5 m
horizontal distance= 6 meters.
it forms a right triangle.
Use phythagorean theorem:
c^2=a^2+b^2
in this case: a=5m and b=6m or either way.
c^2=5^2+6^2
c^2=25+36
c^2=61
by square root: (both sides)
c=sqrt61
c=7.81 m
AB=7.8 meter long
horizontal distance= 6 meters.
it forms a right triangle.
Use phythagorean theorem:
c^2=a^2+b^2
in this case: a=5m and b=6m or either way.
c^2=5^2+6^2
c^2=25+36
c^2=61
by square root: (both sides)
c=sqrt61
c=7.81 m
AB=7.8 meter long
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