Aslice is made perpendicular to the base of a right rectangular pyramid as shown. what is the area of the resulting two-dimensional cross section? enter you answer in the box. cm²

She is correct

Step-by-step explanation:

Because in the picture it only points to half the cross. So then use half the base which is 5. and when you multiply the base(in this case half)  with the height which is 22, you get 110. and since you need the area of the whole cross, multiply 110(half the cross) by 2, to get 220

160 cm

step-by-step explanation:

you have to add all the sides together