Question

What is the answer. Please help. This is urgent. Thanks!

Answer 1

surface area

`(3 * 3) + (2 * 3 * 7) \\ 9 + 42 \\ 51`

Answer 2

`\huge\boxed{\sf 51\ in.\²}`

Explanation:

Area of square:

= Length * Length

Where length = 3 in.

= 3 * 3

= 9 in.²

Area of Triangle:

= 1/2 (Base)(Height)

Where base = 3 in. , Height = 7 in.

= 1/2(3)(7)

= 1/2 (21)

= 21/2

= 10.5 in.²

Area of 4 triangles:

= 4(Area of triangle)

= 4(10.5)

= 42 in.²

Surface Area of the pyramid:

= Area of square + Area of 4 triangles

= 9 + 42

= 51 in.²

`\rule[225]{225}{2}`

Hope this helped!

~AH1807