Iliana is painting a picture. she has green, red, yellow, purple, orange, and blue paint. she wants her painting to have four different colors.

if order does not matter, in how many ways can she pick four colors if green must be one of them?

4
6
10
15

Iliana can pick in 10 ways.

Solution:

Iliana has green, red, yellow, purple, orange, and blue paint = total 6 colours

She wants to have 4 different colours in the painting.

But in those 4 colours green is must, it should always be there.

So except green we have total 5 colours (red, yellow, purple, orange, and blue) from which we can pick any 3 colours(as green will be one in four colours).

Then we can choose 3 colours from 5 colours in x ways.  

x ways =

Step-by-step explanation:

15

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

step-by-step explanation: