C is the answer theories are like guesses whereas a law is the truth
Nepal measures about 880 kilometers (547 mi) along its Himalayan axis by 150 to 250 kilometers (93 to 155 mi) across. It has an area of 147,516 km2 (56,956 sq mi).
Oral rehydration salts are used to prevent and treat dehydration, especially that due to diarrhea.
If X is another angle, keep in mind that when the figure is a triangle the sum of the angles is 180º (angle1+angle2+angle3=180º) ALWAYS!!
