The error is that he probably forgot the decimal point thus causing him to say '"hundred" instead of "and" for the decimal point.
PQ // BC
then
Angle P = Angle B, A is common angle the two triangles are similar
AP/AB = AQ/AC
8/18 = 12/ AC
AC = 12 * 18/8 = 27 (your ans: D)
AQ + QC = AC
QC = AC - AQ = 27 - 12 = 15 (if it was required)
tan60 = y/8
y = s tan60 = 8sqrt(3) (B)
Next time, post each question separately.
what do you need help with
Hello!
1/3 × 3/5 = 3/15
The correct answer is the first rectangle, because it has a total of 15 squares, and 3 of them are shaded blue.
