An engineer made this design for a part of a metal brace to be used to support the roof of a building in the design, AB and FCDE ara rectangles Roof Brace
A
Which of these can be proved to be true? Choose all that are correct
A sin ZABF
= cos ZAFB
B. sin ZABF = cos ZEDF
C. sin ZFBD = cos ZFDB
D. COS ZEFD=sin ZCFD
O E cos ZCFD = sin ZCFD
OF. cos ZFBC = sin ZFCB

518,400

step-by-step explanation:

the area is multiplying all the given measurements together.

40 * 18 * 30 * 24 = 518,400

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

step-by-step explanation: