Determine the value of x in the figure. Question 1 options: A) x = 90 B) x = 85 C) x = 45 D) x = 135

A.) x=90°

Step-by-step explanation:

Note:

The triangle shown is an isosceles triangle, which means that it has 2 congruent sides (as shown by the small intersecting lines), and this also means that it has two congruent angles.

We are given an angle measure adjacent to one of the missing angles. These two form supplementary angles, which means that they're sum is equal to 180°, or a straight line. So, to find:

y is the unknown angle. Solve for y:

y is 45°. Since this and the other angle are congruent, add:

Note:

Triangles angles will always add up to a total of 180°.

To find the missing angle x°, use:

These are the angles in a triangle. Substitute any known values and solve:

The missing angle x° is 90°.

:Done

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.

37

step-by-step explanation: