Answer:
The surface area is
Step-by-step explanation:
we know that
The surface area of the square pyramid is equal to
where
b is the length side of the square base
h is the height of the lateral triangular face
we have
Applying Pythagoras Theorem find the value of h
substitute in the formula
Answer:
40 its the correct answer
I'm pretty sure it's 60 US$
Answer:
= 8
Step-by-step explanation:
The n th term of a geometric sequence is
= a
where a is the first term and r the common ratio
Here a = 8 and r = - 24 ÷ 8 = - 3, thus
= 8