c. 65°
step-by-step explanation:
we are given a triangle with two known angles, 62° and 53°, while the third angle x is unknown and we are to find its value.
we know that the sum of angles in a triangle is equal to a total of 180 degrees. so we can write it as:
x + 62° + 53° = 180°
solving to find the value of x:
x = 180 - (62 + 53) = 65°
therefore, the value of x in this triangle is 65°.