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01-01-2019
Mathematics

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o is the centre of a circle PQ is a chord and PT is a tangent at P if angle POQ is 70° then find angle TPQ

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Аноним Аноним

01-01-2019

Answer:

< TPQ = 145 degrees

Step-by-step explanation:

< QPO = (180 - 70)/2 = 55 degrees ( base angle of an isosceles triangle).

< OPT = 90 degrees ( OP is a radius to point of contact of the tangent).

Therefore < TPQ = < QPO + < OPT

= 55 + 90

= 145 degrees

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