Question

(ii) In the figure, ABC = 90°, AB = 3x, BC =4x and AC = 30, then (a) Using Pythagoras theorem, determine the value of x. ​

Answer 1

Answer:

The value of x is 6

Step-by-step explanation:

(AB)² + (BC)² = (AC)²

(3x)² + (4x)² = (30)²

9x² + 16x² = 900

25x² = 900

x² = 900/25

x² = 36

x = √36

x = 6