Well, 4+1=5, so we need to first find:

Ivan gets

Tanya gets

the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
The sum total of the angles in a triangle is equal to 180° degrees.
Answer:
your will be A
Step-by-step explanation:
hoped i helped and can i get brainiest pls
I can't help I don't see a question