Question

triangle ABC is right angled at vertex a calculate the length of BC if a b is equal to 18 cm and ac is equal to 24 cm?
Pythagoras theorem.

Answer 1

AB is the base, AC is the altitude (let us assume)
According to Pythagorean’s theorem
Hypotenuse ^2 = base^2 + altitude ^2

BC^2 = AB ^2 + AC ^2
= 324 + 576 = 900
Therefore BC = square root(900) = 30

Answer 2

bc^=ab^+ac^
bc^=18^+24^
bc^=324+576
bc^=900
bc=√900
bc=30cm