to train for the math league competition, Janice spent 1/2 hour each day of the first week reviewing lessons, adding an additional 1?2 hour each week for 4 weeks. What were the total number of hours she spent reviewing during the fourth week

tube or goog would be a great resource to with that question

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

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13