sandybutt
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If the measure of DAC is x and the measure of CAB is (2x – 30), what is the value of x? (HINT** remember how we label angles, think about what type of angles these are)




a
60
b
40
c
75
d
15

If the measure of DAC is x and the measure of CAB is 2x 30 what is the value of x HINT remember how we label angles think about what type of angles these are a class=

Respuesta :

Answer:

b

Step-by-step explanation:

∠ BAD = 90° and

∠ DAC + ∠ CAB = ∠ BAD, that is

x + 2x - 30 = 90

3x - 30 = 90 ( add 30 to both sides )

3x = 120 ( divide both sides by 3 )

x = 40 → b

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