Every triangle’s inner angles’ addition equals to 180° So if we find the x: 38°+x+2°+x=180° 40°+2x=180° 2x=180°-40°=140° x=140°/2 x=70° Now if we find the I hope this helped :)
Expressing a number in a power of 2 means that you have to figure out how many times you should multiply 2 by itself so the product will be that number.