Answer:
x= 4
Explanation:
x acts as a perpendicular bisector so we can form two right angled triangles
it means the length that is 6 divides by two so each triangle can have 3 units at the bottom
So we can take one right angled triangle and use Pythagoras theorem to find x
from Pythagoras theorem
a²+b²=c² of which c is the hypothenuse,and a and b are the other two sides
x² + 3² = 5²
x²+3²-3² = 5² - 3² (you need to isolate x² )
x² = 25 - 9
x²= 16
to find x whe find the square root of both sides
√x² = +/-√16
x= +/- 4
x is therefore equal to + 4 because length can be negative