Write down the size of angle ABC give a reason for your answer

90 degree

Step-by-step explanation:

because angle in a semi-circle is 90 degree

v v cj van config k tbs eng r.c r.c fcb fb gb frfr

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere