Salma photocopied the design for a monorail track system. The figure below shows the design and its photocopy. The ratio of DA : BC is 1 : 2. The total length of track on the design is 47 meters. What is the length, in meters, of side EH on the photocopied image?
5? @jim_thompson5910
@jim_thompson5910 would u agree?
heres another one that im less sure of
if u can help
Look at the figure shown below. Sonja determines that triangle CGD is an isosceles triangle. Which statement best describes Sonja’s conclusion? It is incorrect because angle GCD = 42°, angle GDC = 36°, and angle CGD = 102°. It is incorrect because angle GCD = 48°, angle GDC = 36°, and angle CGD = 96°. It is correct because angle GCD = 42°, angle GDC = 42°, and angle CGD = 96°. It is correct because angle GCD = 48°, angle GDC = 48°, and angle CGD = 84°.
@jim_thompson5910
I'm getting 5 as well
ok what about the second one
You can get the measure of <BCA easily, and <GCD is congruent to <BCA bec they are vertical angles.
|dw:1359851124862:dw|
x+42 = 90 solve for x
x=48
|dw:1359851258424:dw| since the two are vertical angles
|dw:1359851281660:dw| and those are verticle angles
vertical*
|dw:1359851325863:dw| solve for z
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