Answer:
a. area of triangle: A=1/2(b)(h)
A= 1/2 (3)(2.4)
A= 3.6cm^2
All the triangles have the same area, so Total area of the triangles is
A= 4(3.60)
A= 14.4 cm^2
Area of the square: A= s^2 (3)^2= 9cm^2
Total surface area o the Pyramid: 14.4+ 9=23.4cm^2
b. Lateral surface area of the Pyramid: A= 1/2 P(l)
A= 1/2 (12)(4)
A= 24cm^2
P is perimeter of the base= (3)(4)=12cm
l s the slant height= 4cm
Step-by-step explanation:
