4 ABC is congruent to AEOL D
E
b)
LCBA
Question 2
In the diagram, BC is parallel to DE.
(a) Show that triangles ABC and ADE are similar.
(b) Given that BD = 2DA, find
2 unit
E
BS
136 cm?
3
DE
BC
(ii) the area of triangle ADE given that the area of the
trapezium DECB is 136 cm².
DE - LABC C corr. ks BC // DE]
С
A
ED = LA CB [ corr. &s Bl II DE]
(= LDAE [ common
angl

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.