Find the perimeter of the three quarter circle, rounding your answer to 3 significant figures

Step-by-step explanation:

the perimeter is  3/4 *2pi*7=3*7 pi/2=21*3.14/2=32.97 ≈ 33 cm

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

50-38=12

step-by-step explanation: