CBSE Class 10 Answered
Please tell
Asked by | 04 Mar, 2009, 11:27: PM
Expert Answer
Consider a triangle ABC,
where AB=AC=b
and
BC=a
To find the area we need a perpendicualr.
So, drop the perpendicular AD from A to BC.
We know that in an isoceles triangle perpendicular on the unequal side bisects that side.
So BD=DC=a/2
In right triangle ABD,
AD=
AD=
So, are triangle ABC
=(1/2) base* altitude
=
Hence proved.
Answered by | 05 Mar, 2009, 08:48: AM
CBSE 10 - Maths
Asked by s.sreeram | 11 Mar, 2010, 08:14: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by BhavSimran | 10 Mar, 2010, 12:24: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by BhavSimran | 10 Mar, 2010, 12:08: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by BhavSimran | 10 Mar, 2010, 12:05: PM
ANSWERED BY EXPERT