Complete the following proof. Given: AB, CD are diameters. Prove: BD=CA

Step-by-step explanation:

1. if AB& CD are diameters, then AB=CD, and then OA=OB=OC=OD - radiuses.

It means, OA=OB and OC=OD.

2. m∠(AOC)=m∠(BOD);

3. according to the 1. & 2 ΔAOC=ΔBOD, then BD=CA

1. if AB& CD are diameters, then AB=CD, and then OA=OB=OC=OD - radiuses.

It means, OA=OB and OC=OD.

2. m∠(AOC)=m∠(BOD);

3. according to the 1. & 2 ΔAOC=ΔBOD, then BD=CA

2,600 divided by 80 = 32.5

step-by-step explanation:

the correct answer is the second option