Question

Please help
The net of a square pyramid is shown below.
(Image showen)
What is the total surface area of the square pyramid in square meters?
A.432 m2
B.756 m2
C.504 m2
D.864 m2

Answer 1

Answer:

864 m2 is the right answer of your question

Answer 2

Step-by-step explanation:

Step 1. ( Finding area of each triangle )

• Each of the given four triangles is a right-angled triangle, whose base is 18 m and height is 12 m.

• Thus area of a triangle is (1/2 * 18 * 12) sq. m = 108 sq. m

Step 2. ( Finding the area of the four triangles )

• Area of a triangle is 108 sq. m

• Then, the total area of the four triangles is (4 * 108) sq. m = 432 sq. m

Step 3. ( Finding the area of the square base )

• The length of each side of the square is 18 m

• Then its area is (18 * 18) sq. m = 324 sq. m

Step 4. ( Finding surface area of the square pyramid )

• The square pyramid has four triangular faces and one square base.

• Thus the total surface area is (432 + 324) sq. m = 756 sq. m

Answer: Option B. 756 sq. m is correct