Question

ABC is a triangle , right angled at C. If AB = 17 cm and AC = 8 cm, find BC.​

Answer 1

Answer:

BC = 15 cm

Step-by-step explanation:

In right angled triangle ABC,

BC² = AB² - AC²     (By Pythagoras theorem)

BC² = 17² - 8²

BC² = 289 - 64

BC² = 225

BC = √225

∴BC = 15 cm

Answer 2

Answer:

Given ; ABC is a triangle

AB= 17 CM

AC = 8CM

BC = ?

SOLUTION:-

by Pythagoras theorem

(AB)square = (AC)sq+ (BC)Square

( 17)square = (8)sq+ (BC)sq

289 = 64 +( BC)sq

289-64 = (BC)sq

225 =( bc)sq

5 Underroot 5 = bc