What type of triangle is shown? A.)equiangular
B.)scalene
C.)isosceles
D.)equilateral

c. isosceles

Step-by-step explanation:

the base angles are the same

Isosceles

Step-by-step explanation:

This triangle is an isosceles triangle, this is because in an isosceles triangle, two angles MUST be congruent.

In a scalene triangle, they are all different

In an isosceles triangle, two angles MUST be congruent

In an equiangular triangle, all three angles MUST be congruent.

A common way that I learned to remember this is

SIE, S=scalene, I=isosceles, e=equiangular.

The good thing to remember about this is the placement of the letters in SIE.

The S is in the first place, indicating the angles in a scalene triangle are going to be different because they are individual angles (1 angle) The I in SIE is in the second place, because isosceles triangles have 2 congruent angles. Finally, equiangular triangles are triangles that have 3 congruent sides.

Examples of each 3 main types of triangles

S = any 3 different angles that add up to 180 degrees.

I = any 2 numbers that are the same, but add up with another number to   equal 180 degrees

E= any 3 numbers that are the same, and add up to equal 180 degrees.

I hope this helps to answer and explain your problem and how you can spot  the main types of triangles!

never fear papaguy is here

answer

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages