Will someone please help me with four problems?

Question

anonymous · Answer

finding the surface area of these two regular pyramids

anonymous · Answer

picture 124,     270.00cm is erea base?
picture 125,     296.05cm is erea base?

anonymous · Answer

no those where what i got when i did them and they are wrong

anonymous · Answer

I want double check 124 the base is  square?

anonymous · Answer

picture 125 the base 5 side ?

anonymous · Answer

124 base is a triangle.
125 base is 6 sides

anonymous · Answer

ok, I m not good eyes. I will working this

anonymous · Answer

h is the high triangle; c is the high of the base of triangle 
       h= √((12)^2-3^2 ) = 11.6
       Area triangle=  (6*11.6)/2 = 34.8 cm^2
       Area for 6 triangles: 34.8*6= 208.8 cm^2
       
      (360°)/6=60       ,       60/2  = 30°
        
      cos30 = c/12
              c = 12cos30 =10.4cm
  Area base =   (base*high*side)/2  
                 (6*10.4*6)/2 =  187.2cm^2
Area base + Area Triangle :
187.2 ^2 +208.8cm^2 = 396cm^2
You check caculator made sure I'm caculater right

anonymous · Answer

124 I can see which one base, which one high