Question

if pa&pb are tangents to a circle with centre o such that <apb=50°, then find <aob
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Answer 1

Answer:

ans is 130°

Step-by-step explanation:

see the angle apb is 50 degree amd the other two corners except angle aob makes 90 ° each coz they are tangents so ,

<aob + <apb + 90 +90 = 360 °. [ANGLE SUM PROPERTY OF A QUADRILAERTAL]

so <aob = 360 - ( 90+90+50)

=130° ans

hope it helps