156k views
5 votes
2. Find the surface area of a square pyramid with a base length of 24 cm and a height of 16 cm.

O 1056 cm²
O 1536 cm²
O 816 cm²
O 1344 cm²

User Kramfs
by
8.6k points

2 Answers

4 votes

Answer:

Explanation:

1344 cm2

User Kibromhft
by
7.5k points
2 votes

Answer:

surface area = 1536 cm^2

Explanation:

The surface area of a square pyramid can be found using the formula:

surface area = base area + 1/2 * perimeter * slant height

The base area is the area of a square, which is given by base length squared:

base area = (24 cm)^2 = 576 cm^2

The perimeter of the base is the sum of the lengths of its sides, which is 4 times the base length:

perimeter = 4 * 24 cm = 96 cm

The slant height can be found using the Pythagorean theorem:

slant height^2 = height^2 + (base length/2)^2

slant height^2 = (16 cm)^2 + (12 cm)^2

slant height = sqrt[(16 cm)^2 + (12 cm)^2] ≈ 20 cm

Therefore, the surface area of the square pyramid is:

surface area = base area + 1/2 * perimeter * slant height

surface area = 576 cm^2 + 1/2 * 96 cm * 20 cm

surface area = 576 cm^2 + 960 cm^2

surface area = 1536 cm^2

User Klone
by
8.1k points