Question

plz guys solve it step by step​

Answer 1

Answer:

25cm

Step-by-step explanation:

According to Pythagoras theorem

(AB) ^2+(BC) ^2 = (AC) ^2

= 15^2 +20^2 = (AC) ^2

= 225 + 400 =(AC) ^2

= 625 = (AC) ^2

=√625= AC

=15 =AC

Therefore, AC =15cm

Hope it helps...

Answer 2

Answer:

given;

∆ABC is a right angle triangle

AB=15

BC=20

find, AC

By Pythagorean theorem:

H² = P² + B²

(AC)² = (AB)² + (BC)²

(AC)² = (15)² + (BC)²

(AC)² = 225+400

(AC)² = 625

AC = √625

AC = √25×25

AC = 25       ---------answer