While exploring a volcano, zane heard some rumbling, so he decided to climb up out of
there as quickly as he could.
zane's elevation relative to the edge of the inside of the volcano (in meters) as a function of
time (in seconds) is graphed.

step-by-step explanation:

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8

part a: triangles gcb and epb

part b. sides cg and rp are parallel by definition of parallelogram.

angles cgb and e are congruent by being alternate interior angles of parallel lines cut by a transversal. angles gbc and ebp are congruent because they are vertical angles. by aa similarity, the triangles are similar.

part c. since the triangles are similar, the ratios of the lengths of corresponding sides are equal.

calculation of be:

gb/be = cb/bp

(400 ft)/be = 300/200

(400 ft)/be = 3/2

3be = 2 * 400 ft

3be = 800 ft

be = 800/3 ft

calculation of pe:

gc/pe = cb/bp

(350 ft)/pe = 300/200

(350 ft)/pe = 3/2

3pe = 2 * 350 ft

3pe = 700 ft

pe = 700/3 ft

8: 40

2 hours

10: 40

55 min

11: 35