Acute right complementary adjacent
Answer: 45 degrees I think.
Step-by-step explanation: Based off of looks alone, one could conclude that 3x is approximately 0.5 degrees larger than 2x, 2x is approximately 90 degrees, and that x is approximately half of 2x. so based purely off of observation, it appears that x is approximately 45 degrees. you can multiply x by the number by in it in each instance.
x=45, 2x=90, and 3x=135
Please check if you have a protractor.
Answer:
90
Step-by-step explanation:
The formula for a triangle is base times height then dividing it by 2
So 15 times 12 is 180 and dividing it by 2 gets you 90.
Hope this helps!