Image attached find the measure of angle 2

the figure is an equilateral triangle, which all angles are 60 degrees

 angle 3 divides a 60 degree angle in half so angle 3 = 30 degrees

 the base is a right triangle which is 90 degrees

 90+30 = 120

180-120 = 60

 Angle 2 is 60 degrees

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: