P, Q and R are points on a circle. A tangent to the circle, RT is also shown.
What is the size of angle x? Give a reason for your answer.

PS: I know the answer is 60, but I don't know how to write the reason for it.

the square root of what number? if you add that, then someone will probably answer the question.

try soting them out first

step-by-step explanation:

236 cm 16 time 12 = 192

6 times 7 = 42

192+42

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus