Question

I need help will u determine the surface area of this pyramid
50 points​

Answer 1

`224mm^(2)`

Basic fact:

area of a triangle = b x h /2

Explanation:

we know the three main values

10mm

8mm

8mm

10 x 8 / 2

10 x 8 = 80

80/ 2 = 40

there are 4 of these

40 x 4 = 160

the base is l x w

8 x 8 = base

base = 64

64 + 160 = surface area

surface area =
`224mm^(2)`

the equation for this pyramid would be:

4LH (length x height) + LW( length x width)

or

4lh ( 8 x 10) + lw (8 x 8