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In triangle ABC angle ABC is 90 degrees. What is the perimeter of the triangle ABC?

1. AB+ BC =7 2. AB/BC =3/4

1. this could have two answers, either, 3 + 4 = 7 or you could play with 3.5 on each side as well? so def. insuff.

2. ab/bc = 3/4 = countless no. combinations. but since 90 degrees@angle abc. this must that ac = 5. but we just don't know if its 6, 8, 10 or 3, 4, 5 therefore insuff.

3. combining them would mean that its 1. 90 degrees at angle abc 2. sides in ratios of 3,4,5. and if 3. if ab +bc =7. then C is suff.

I think A could be right as well. By AB+BC=7 and since this is right angle triange. we have AB and BC= either 3 or 4. Both gives AC=5 means perimeter AB+BC+AC=12!

I think its good questions, if this comes in the test I might have selected C as well..but careful consideration gives that only A is enough.

I think A could be right as well. By AB+BC=7 and since this is right angle triange. we have AB and BC= either 3 or 4. Both gives AC=5 means perimeter AB+BC+AC=12!

I think its good questions, if this comes in the test I might have selected C as well..but careful consideration gives that only A is enough.

I couldn’t help myself but stay impressed. young leader who can now basically speak Chinese and handle things alone (I’m Korean Canadian by the way, so...