One angle of a triangle is obtuse. The sum of the measures of the other angles must be A. more than 90 degrees B. less than 90 degrees C. equal to 90 degrees help i need this 10 points please

B.less than 90 degrees

Step-by-step explanation:

Obtuse angle is greater than 90°

Since the sum of all 3 angles= 180°

The sum of other 2 angles less than  180°-90°= 90°

answer:     true

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.