Question

In a circle with centre O arc AB = arc PQ.

Prove that chord AB = chord PQ

Proof : In ∆AOB and∆ ,

1. Side AO ≅ ______

2. Side BO ≅_______ for 1 and 2 Reason ________

3. ∠AOB ≅ ∠ measures of congruent arcs

4. ∴ ∆AOB ≅ ∆ (_______)

5. ℎ ≅chord PQ ...csct

2. a) sin (90°- ) =________

b) Tan (90°- ) =________

c) sin

cos

= ________

d) 1

cos

= _________​

Answer 1

hing

ab=ba from the thales of the miletus if it is like that