Find the surface area of the pyramid. The side lengths of the base are equal.

Your answer will be

576.66615 but if rounded it will be 576.67

Step-by-step explanation: Hope I helped

552cm squared

Step-by-step explanation:

The first step is to find one of the surface areas of the triangles.

(12*17*0.5)

102

Now that we have one of them, we need to find what the four of them together is equal to.

(102*4) or 102 + 102 + 102 + 102

408

The next time is to find what the square is equal to.

(12*12)

144

The last step is to add the four triangles and the squares surface areas together.

408+144

552

The surface area of the shape is going to be 552cm^2

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)