Answer:
1 is 136, 2 is 44, annd 4 is 44
Step-by-step explanation:
That would be 40 I think if you are talking about the green area
I don't understand your question.. Is this multiple choice or something else?
The triangle in the drawing is semi equilateral. Therefore a=√(14^2-7^2)=12.12 cm
The base of a regular pyramid consists of 6 equilateral triangles. The area of each triangle is: (14*12.12)/2 = 84.87 cm^2
The base: 6*84.87=509.22 cm^2