Question

HELP? WILL MEDAL!!

Answer 1

no, the answer is not 86

hint: the 47 degree angle and angle 'a' add up to 90 degrees, ie,

a+47 = 90

Answer 2

If its a right triangle, that means that one angle is 90, and the other two equal 90.
So like jim said, a+47=90, and a should be 43.

Answer 3

Do you get it?

Answer 4

Here is another way to think about it.

Answer 5

idk the answer 

Answer 6

There is two traingles in this big traingle.
If they both have a right angle and "a" in common, that means that angle R must be 47 degrees as well. Now, we have

Answer 7

Now, since the sum of the angles in a triangle is 180 degrees, you add 47 and 47 and subtract it by 180
180-47-47=86
This means that the top part is equal to 86 degrees.