Question

Find the length of AC (pls help or i will die T_T)

Answer 1

To find

length of AC

Given

• AB is 5.3 cm in length
• AC is 6.8cm in length
• Right angled triangle

Solution

AC^2 = AC^2 - AB^2 (pythagoras theorem )

= (6.8)^2 - ( 5.3)^2

= 46.24 - 28.09

= 18.15

AC = 4.2cm