Question

if the length of median of an equilateral triangle is is 5 cm then it's attitude is
a.3 cm
b.4 cm
c.5 cm
b.√5 cm​

Answer 1

In ΔABD,

(AD)

2

=(2a)

2

−(a)

2

(AD)

2

=4a

2

−a

2

=3a

2

AD=

3

a.

solution its the right answer