Question

PLEASE SOLVE THESE SUMS AND GIVE SOLUTIONS ASAP

Answer 1

Answer:

1 st one answer

draw a chord from B to O.so we get two equilateral triangle.In equilateral triangle the two sides will equal.like that we can find the angle of angle o and angle b in triangle OCB.we can also find angle O and angle B in triangle AOB.By adding the angles formed by two two triangles at B we can find the angle B.B is half of the central angle.and angle D would be 180 -B divided by 2.so we find the first question.

Step-by-step explanation:

Then second one first question answer is 28 degree consider the arc PR.

then the second sub question answer is 70 degree.linear pair

then third sub question answer is 140 degree

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