b) ABC is an isosceles triangle with AB = AC =13 and BC = 10 cm. Calculate the length of the perpendicular
from A to BC
Answers
Answered by
1
Answer:
Let the perpendicular from A cuts BC at D. In an Isosceles triangle the perpendicular on non congruent side bisects the non congruent side.
Hence, In
△
A
B
D
,
A
B
2
=
B
D
2
+
A
D
2
(Pythagoras theorem)
13
2
=
5
2
+
A
D
2
A
D
2
=
144
A
D
=
12
cm
Similar questions