Question

in a right triangle ABC,lb =90° if AB is 6cm BC is 3m find AC
​

Answer 1

Step-by-step explanation:

△ ABC is a right angled triangle.

By Pythagoras theorem,

AC

2

=BC

2

+AB

2

=>AC

2

=6

2

+8

2

=>AC

2

=36+64

=>AC

2

=100

=>AC=

100

=>AC=10cm

Answer 2

Answer:

AC = 3√5 cm ≈ 6.708cm

Step-by-step explanation:

i suppose the measure of ∠B = 90°  (the question is not clear )

also, given that AB = 6cm and BC=3cm  (is this m or cm  again not clear )

=> the triangle is a right angled triangle with right angle at B

=> AC is the hypotenuse ,  also AB and BC are the other 2 sides

by pythogorous theorem,

here, AC² = AB² + BC²

     => AC² = 6² + 3²

                  = 36+9

                  = 45

so, AC = √45 = √(9*5) = √9 * √5

                                     = 3√5 cm   (or 3*2.236 cm = 6.708cm)