Acertain triangle has two 45° angles. what type of triangle is it?
a. acute triangle
b. right triangle.
c. right isosceles
d. acute isosceles

C. Right isosceles

Step-by-step explanation:

We have 2 angles that are the same, that means two sides have to be the same.  That makes the triangle isosceles

There are 3 angles in a triangle.  They add to 180

45+45+x = 180

90+x=180

90-90+x=180-90

x=90

The other angle is a 90 degree angle.  A ninety degree angle is a right angle.

That makes the triangle a right isosceles triangle

maybe i can

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