Q16
The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is
A.
12 cm
B.
cm
C.
4 cm
D.
9 cm
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
According to question,
AO = IR = Circumradius
DO = Ir = Inradius = 3 cm
Median AD = 3 units
1 unit = 3 cm
3 units = 3 × 3 = 9 cm
∴ AD = 9 cm