Question

Arc of 4 cm of a half circle whose length AB and angle ACB is a half circle angle if BC =2√7cm then what is the length of AC??? Help me...​

Answer 1

Answer:

AC = 6 cm

Step-by-step explanation:

angle formed in circumference ACB ins 90°

ACB is right angled triangle. diameter AB= 2×4= 8 cm.

by Pythagoras theorem,

we can find value of AC.

Answer 2

Answer:

Yea the above answer is correct...