I WILL GIVE BRAIN
Find m2WXY
Po
(2x - 2)
w Х
70°
Z
O
mZWXY = |

m∠WXY is 142°

Step-by-step explanation:

The measure of the exterior angle at one vertex of a triangle equals the sum of the measures of the opposite interior angles to this vertex

In ΔXYZ

∵ ∠WXY is an exterior angle at the vertex X

∵ ∠Y and ∠Z are the opposite interior angles to the vertex X

→ By using the rule above

∴ m∠WXY = m∠Y + m∠Z

∵ m∠WXY = (2x - 2)°

∵ m∠Y = x° and m∠Z = 70°

→ Substitute them in the equation above

∴ 2x - 2 = x + 70

→ Subtract x from both sides

∵ 2x - x - 2 = x - x + 70

∴ x - 2 = 70

→ Add 2 to both sides

∵ x - 2 + 2 = 70 + 2

∴ x = 72

→ To find the m∠WXY, substitute x by 72 in its measure

∵ m∠WXY = 2(72) - 2

∴ m∠WXY = 144 - 2

∴ m∠WXY = 142°

1) is right

step-by-step explanation:

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