Answer:
Sry if I'm late the answer is 340
Step-by-step explanation:
Calculate the area of each triangular face using the formula for the area of a triangle, which is
1/2×base×height. If the base of each triangle is 12 ft and the height is 10 ft, then the area of each triangle is
1/2×12×10=60ft^2. Since there are 4 triangular faces, multiply the area of one triangle by 4 to get the total area of the triangular faces: 4×60ft^2=240ft^2
Add the area of the base to the total area of the triangular faces to find the total surface area of the pyramid: 100ft^2+240ft^2=340ft^2
So, the surface area of the regular pyramid is
340ft^2.
