Ill give brainliest.. help plss!! look at the picture.

b°+90°=180°(sum of angle in straight line)

b°=180°-90°

b°=90°

a°=30°(vertically opposite angle)

A: 30 degrees

B: 60 degrees

C:105 degrees

Step-by-step explanation:

A: vertical angles are congruent

B: solve for the missing angle -- 90+30+?=180

C: Use exterior angle to find the supplementary angle

what is the original number? you forgot to add it.

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: