Answer should be 5,6,8 if that is an answer choice
Answer:
Option B.
Step-by-step explanation:
It is given that the sides of an equilateral triangle are 8 units long.
Draw an altitude of the triangle.
Altitude of an equilateral triangle is perpendicular bisector.
Let x be the length of the altitude of the triangle.
According to the Pythagoras theorem

Using Pythagoras theorem we get




Taking square root on both sides.


The length of the altitude of the triangle is 4√3 units.
Therefore, the correct option is B.
Answer:
125.7 mm
Step-by-step explanation:
Circumference=πd=π·40≈125.66371 mm
Answer:
112.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
d and r are the diameter and radius, respectively.
d = 8 units
r = 8/2 = 4 units
area = πr² = 16π square units.