Answer:
The height h = 12.87 cm.
Step-by-step explanation:
Volume = pi r^2 h
647 = pi 4^2 h
h = 647 / 16pi
h = 12.87 cm.
Answer:
..............................................yes
Step-by-step explanation:
lol
M∠BCA=90, then <span>m∠BAC +∠ABC=90
</span>m∠BAC = 2m∠ABC, then 2m∠ABC + m∠ABC=90, m∠ABC=30, and m∠CAB=60
ΔBAC is a 30-60-90 right triangle, in which the ratio of the side lengths is 1:√3:2
AC:BC=1:√3, AC=BC/√3
BC=24, AC=24/√3=8√3, (you don't need AB, but AB=2AC=16√3)
AL bisects angle A =>m∠LAC=30
ΔALC is a 30-60-90 right triangle, in which the ratio of the side lengths is 1:√3:2
AC:AL=√3:2
AL=2AC/√3=2*8√3/√3=16
