It would be 90%..... 45/450= 10%.... so there would be 90% not being used.
with what? you need to explain whats going on in order to get the help you need!
Answer:
6 cm
Step-by-step explanation:
If you use Tangent-secant product (chapter reference), AB/AC = AD/AB so 4/2 = AD/4. AD = 8, CD = AD - AC = 8 - 2 = 6 cm.
