I'll mark relations {(-3,2), (0,-4), (5,6), (1,2), (-1,7)} a) draw a mapping diagram. b) state domain set and range set. c) state whether this relation is a function or not and justify your answer.

The surface area is

Step-by-step explanation:

we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four triangular lateral faces

so

where

b is the length side of the square base

h is the height of each lateral triangular face

we know that

-----> by angle of 45 degrees

Find the value of b

Find the surface area