Answer:
Surface Area = 85.75 ft²
Step-by-step explanation:
Surface area of pyramid = ½(Perimeter of triangular base * slant height of pyramid) + Area of triangular base
Perimeter of triangular base = sum of all sides of the triangular base = 5+5+5 = 15 ft
Slant height of pyramid = 10 ft
Area of triangular base = ½*base of triangle*height of triangle = ½*5*4.3 = 10.75 ft²
Plug in the above values:
Surface Area = ½(15*10) + 10.75
= (15*5) + 10.75
= 75 + 10.75
Surface Area = 85.75 ft²
Answer:
c
Step-by-step explanation:
Answer:
Step-by-step explanation:
A]
Both have the same surface area. The numbers are just rearranged.
B]
Is the correct answer.
The surface area of the first one is 2*8*5 + 2*8*6 + 2*5*6 = 236
The surface area of the second is 2*10*8 + 2*10*3 + 2*8*3 = 244
C]
Another rearrangement. Not the answer.
D]