WILL GIVE BRAINLIEST. 100 POINTS

Step-by-step explanation:

arc from the end point where t is to a, then do a equivalent arc to the top of the paper opposite of A for the first one

for the second one you're going to want to arc the point a below the segment CB using a protractor to create a line going perpendicular (90 degrees), mark that point, then connect the point from your new point to point A using something straight, then do the same thing for B through segment AC and C through segment AB

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.