Question

help!!

Answer 1

An architect planned to construct two similar stone pyramid structures in a park. The figure below shows the front view of the pyramids in her plan, but there is an error in the dimensions:

Answer 2

Which of the following changes should she make to the length of side CB to correct her error?

Answer 3

A) change the length of side CB to 13 feet
B)change the length of side CB to 11 feet
C)change the length of side CB to 8 feet
D)change the length of side CB to 8.5 feet

Answer 4

@pooja195

Answer 5

for them to be similar the ratio of corresponding sides must be the same
PR/AC = 7.5 / 6 and
PQ/AB = 5/4

both equal to 1.25

Answer 6

So RQ/CB should be = 1.25 also

Answer 7

so would it be d?

Answer 8

what does 10/8.5 come to?

Answer 9

work it out on your calculator

Answer 10

is 10/8.5 = 1.25?

Answer 11

I got 1.17

Answer 12

so?

Answer 13

is d the answer?

Answer 14

im so confused :(

Answer 15

well 10/CD must be eqaul to 1.25 ( which is the ratio of the other 2 sides in the triangles)
so you need to find which length of CD gives you this ratio.
it can't be 8.5 because 10/8.5 = 1.17 not 1.25
so try option c

= 10/8
what does that equal?

Answer 16

1.25

Answer 17

right - you've got it

Answer 18

so C?!

Answer 19

of course

Answer 20

thank you!!

Answer 21

yw