Answer:

Step-by-step explanation:
We have the square and four equilateral triangles.
The formula of an area of a squre:

a - length of side
The formula of an area of an equilateral triangle:

a - length of side
Clculate the areas:
SQURE:

TRIANGLE:

The SURFACE AREA of a square pyramid:

Put x = 5:

Answer:
48
Step-by-step explanation:
First, substitute in 12 for x
2.4(12 ÷ 1/4)
Distribute 2.4 within the parenthesis
2.4 x 12 = 28.8
2.4 x 1/4 or 2.4 x 0.25 = 0.6
28.8 ÷ 0.6
Divide to get your answer:
48
I Hope That This Helps! :)
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this is when its solved: r=4, s=3}