Question

In fig Ac is the diameter if AC=BC . find angle BAC
2) using a ruler and compas draw an angle 90°​

Answer 1

Answer:

hey your answer is as follows

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Step-by-step explanation:

so here ac is the diameter

now we know that diameter always subtends a right angle at any point on circumference of circle

so thus angle abc=90 degrees .

so as ac=bc

we can conclude that triangle abc is an isoceles right angled triangle

so thus then

angle bac=angle bca=each 45 degrees