Question

find X in each of the following circles with centre with statement and reason

Please solve this tommorow is my exam ​

Answer 1

Answer:

in question 5 answer is 35

Answer 2

Answer:

X = 50°

Explanation:

Q6) Theorem Used :

Angle subtended by a chord at the centre of a circle is twice the angle subtended by the chord at any point on the circle.

Therefore,

Angle AOB = 2 × Angle ACB = 2 × 40° = 80°

In triangle AOB,

Angle OAB = Angle OBA

(Angles opp. to equal sides in a triangle are equal)

So, Angle OBA = X

Now,

X + 80° + X = 180°

(angle sum property of a triangle)

2x = 180° - 80° = 100°

x = 100°/2 = 50°

I hope you understood :)