Question

pitágoras:

hipotenusa: 2x
cateto: 3✓3
cateto: x

Answer 1

Vamos lá

hip² = cat² + eto²

(2x)² = (3✓3)² + x²

4x² = 27 + x²

3x² = 27

x² = 9

x = 3

hip = 2x = 6

cat =  3✓3

eto = 3

Answer 2

(2x)^2=(3V3)^2+x^2
4x^2=9×3+x^2
4x^2-x^2=27
3x^2=27
x^2=27/3
x^2=9
x^2=3^2
x=3