Triangle abc has measures a = 2, b = 2, and m∠a = 30°. what is the measure of angle b?
15°
30°
45°
60°

We know that to angle A coresponding side a and to angle B corespond side b so there given that to angle A with measure of 30 degree corespond the side length of side a = 2 but from this given details that side b has length equal 2 so from this reasult that the measure of angle B is equal 30 degrees too same with angle A 

X=y+4 is the answe

Hello!
volume of sphere =4/3.pi.r^3