bglosson4333
17.07.2019 •
Mathematics
First picture(q1) what is the length of segment dc? second picture(q2)given that triangle d e f is similar to triangle w x y, what is x? third picture(q3)given the following: measure of arc a b equals measure of arc b c equals measure of arc c d. in circle f, what is the measure of ∠ ced ?
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Ответ:
∠CED is incribed,
so m∠CED = (1/2)*CD =36/2 =18
m∠CED = 18⁰
2) |EF| / |XY| =|EG| /|XZ|
20/4 = (3x+2) / (x-3)
5 = (3x+2) / (x-3)
3x + 2 = 5(x-3)
3x +2 = 5x - 15
2x = 17
x= 8.5 cm
Ответ: