364,717 views
27 votes
27 votes
Please answer quickly Attachment down below

Please answer quickly Attachment down below-example-1
User Mansu
by
2.0k points

1 Answer

20 votes
20 votes

Answer:

He needs to find the area of each lateral face plus the area of the base. The total surface area is 84.

Explanation:

area of a triangle= b×h×1/2

therefore area of each triangle(lateral face)= 6×4×1/2= 12

12×4 because there are 4 triangles=48

then the area of the base= 6×6= 36

total surface area= 36+ 48=84

User Anas
by
3.2k points