Question

Please help me on this question​

Answer 1

30cm, 72cm

Explanation:

c²=a²+b²

x²=18²+24²=900

x=√900

x=30cm

p=a+b+c

p=18+24+30

p=72cm

Answer 2

x = 30 cm
Perimeter = 72 cm

Explanation:

By Pythagoras theorem,

x² = 18² + 24²

x² = 324 + 576

x² = 900

x² = 30²

x = 30 cm

Perimeter of a triangle is just the sum of its sides,

Perimeter = 18 + 24 + 30

Perimeter = 72 cm