Can someone help me on this Proofs problems? It's just number one and two.

See Explanation

Step-by-step explanation:

1. By interior angle sum Postulate of a triangle.

From equations (1) & (2), we find:

Hence proved

2. In is exterior angle.

Therefore, by remote interior angle theorem, we have:

From equations (1) & (2), we find:

is an isosceles triangle.

Thus proved.

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi