Visualise 3.847 on number line using successive magnification

Step 1: Consider a number line.
Step – 2 – Visualise line between numbers 3 and 4.
Step – 3 – Magnify space between numbers 3 and 4 into 10 equal parts.
Step – 4 – Visualise between number 3.7 and 3.8 minutely using a magnifying glass.
Step – 5 – Magnify and divide space between numbers 3.7 and 3.8 into 10 equal parts.
Step – 6 – Visualize the number 3.765 using a magnifying glass.

Hope this helps

This polygon has 4 sides
180(4-2) = 180(2) = 360 degree
80+90+2x + 3x = 360
170+5x = 360
5x = 190
x= 38
measure of angle t is 2(38)= 76
the answer is c. trust me
hope this !