AX an EX are secant segments that intersect at point X. What is the length of DE

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?