Question

Ben made a model (shown below) of the square pyramid he plans to build when he grows up. Find the surface area of the model.

Answer 1

Answer:

240 m

Step-by-step explanation:

Answer 2

Answer:

The surface area of the model is $SA=240\ m^{2}$

Step-by-step explanation:

we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of four lateral triangles

so

$SA=10*10+4(\frac{1}{2}(10)(7))\\ SA=100+140\\SA=240\ m^{2}$