Question

Calcule o valor de X Nos triângulos Retângulos

Answer 1

X² + ( 3V3)² = ( 2X)²
X² + ( 9 *3) = 4X²
X² + 27 - 4X² = 0
-3X² + 27 = 0
-3X² = -27
3X² = 27
X² = 9
X = 3 *****
2X =  2 ( 3 ) = 6 ****

figura b

( x + 5 )² = ( x + 3 )² + 6² 
( x² + 2 *5*x   + 5²  =  ( x² + 2 * 3 * x + 3² )+ 36
x² + 10x + 25 =( x² + 6x + 9 ) + 36
x² + 10x + 25 - x² - 6x - 9 - 36 = 0
4x  - 20 = 0
4x = 20
x = 20/4 = 5 ****

a = x + 5 =  5 + 5 = 10 ****
b = x + 3 =  5 + 3 = 8 ****
c = 6 ****