Question

PLEASE HELP I WILL MARK BRAINLIST BUT DONT ANSWER FOR THE POINT PLEASE I AM DESPERATE

Answer 1

Answer:

478.32

Step-by-step explanation:

1) the basic formula is:

$A=A_{base}+A_{sidesurface}.$

2) the Area of the base consists of 6 triangles, they are the same. In one triangle: its base is 8 cm., the height is 6.93 cm, - then the Area of one triangle is 0.5*8*6.93=27.72 (cm²);

$A_{base}=6*27.72=166.32(cm^2).$

3) the Area of the side surface consists of 6 triangles, they are the same. In one triangle: its base is 8 cm., the height is 13 cm, - then the Area of one triangle is 0.5*13*8=52 (cm.²);

$A_{sidesurface}=6*52=312(cm.^2).$

4) finally, the required Area:

$Area=A_{base}+A_{sidesurface}=166.32+312=478.32(cm.^2).$