The chord PQ subtends an angle of 67 degrees at the centre of a circle. Find the size of the obtuse angle between PQ and the tangent to the circle at Q

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step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps