Line segments xy and zy are tangent to circle o.

which kind of triangle must triangle xyz be?

a) an equilateral triangle
b) an isosceles triangle
c) a scalene triangle
d) a right triangle

Combine points X and O to get segment XO and combine points Z and O to get segment ZO. Segments XO and ZO are radii of the given circle, then they are congruent. Thus, the triangle XOZ is isosceles, that gives you .

Since segments XY and YZ are tangent to the circle, then .

Consider angles ∠ZXY and ∠XZY:

.

Taking into account that

,

you have

.

If twoo angles adjacent to the side are congruent, then this side is a base of isosceles triangle.

correct choice is B.

answer: 370

step-by-step explanation:

remember use pemdas! there are no parentheses or exponents so lets move onto the first part of the equation: multiplication and division. first, lets break the first part of the equation up into something easier using the distributive property. 28 * 12= (20 *12) + (8*12) you know that 20*12 is 240 and 8*12 is 96. add them and you get 336. then, lets solve the last part of the equation (the last part of pemdas is addition and subtraction). 336 plus 34 is 370. hope this !