Question

Need help asap. I don’t understand this. Plz be serious and know what to do.

Answer 1

Answer:

• 63 cm²

Step-by-step explanation:

To find the surface area, we need to find the area of all the squares and triangles available.

Solution:

• Area of triangle = 1/2 x base x altitude
• => 1/2 x 3 x 9
• => 27/2 cm²
• => 13.5 cm²

Now, multiply the area of the triangle by 4.

• => 13.5 x 4
• => 54 cm²

Now, let's find the area of the square.

• => Area of square = side²
• => Area of square = 3²
• => Area of square = 9 cm²

Now, add the area of the triangles and the squares.

• => 54 + 9
• => 63 cm²

Hence, the surface area of the pyramid is 63 cm².