Bill started from his home and cycled 6 kilometers due west to meet his friend. from there, he rode another 8 kilometers due south to a book store. after buying some books, he rode another 3 kilometers due east to a florist and then rode another 4 kilometers due north to take a lunch break at the park. he took exactly 3 hours to get from home to the park. what are bill's average speed and average velocity?

His average speed is 7 km/hr, and his average velocity is 1.67 km/hr to the southwest.

true

explanation:

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.