Find the surface area of a square pyramid with base length of 16 cm and a slant height of 20 cm
1 answer:
Answer:
The surface area of the square pyramid is 1,040
Step-by-step explanation:
To find the surface area of the square pyramid, we make use of the mathematical formula.
Mathematically, the formula for calculating the surface area A of a square pyramid is :
SA = where s is the slant height and l is the base length
From the question, we can see that the slant height is 20cm and the base length is 16cm. We plug these into the equation above;
SA = = 400 + 640 = 1,040
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Area of a triangle:
A= (1/2)(bh)
In this problem we are given:
A= 178.5
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h= UNKNOWN ("h")
Plug in our values into the area equation and solve for "h":
(multiply each side by 2 to get rid of the 1/2)
(357/21=17)
(solve both inequalities separately)
( a negative height is not possible so, this answer is incorrect.)
Answer: base = (h+4)= (17+ 4) b= 21 in h= 17in
Please comment with any further questions! :)
A= (1/2)(bh)
In this problem we are given:
A= 178.5
b= h+4 in
h= UNKNOWN ("h")
Plug in our values into the area equation and solve for "h":
(357/21=17)
Answer: base = (h+4)= (17+ 4) b= 21 in h= 17in
Please comment with any further questions! :)