The diagonal of a rectangle whose length is 15cm and breadth is 8cm

diagonal is 17 cm

Step-by-step explanation:

use pathagorean theorem

you have a = 8, b= 15

c is the diagonal of the rectangle (rectangle has 90deg angles)

c^2 = a^2 + b^2

c^2 = 8^2 + 15^2

c^2 = 64 + 225

c^2 = 289

take square root

c = 17

hope this helps

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.