Question

HHELP HELP PLZZ PLZ SHOW WORK PLZZZZZ

Answer 1

B.) 43.3 square centimetres

Explanation:

The height is 4.33 cm and the side length is 5 cm. The surface area of the net would be the sum of the areas of all the triangles, which is 4 triangles. Since they are equilateral triangles, you can multiply. Use the formula for the area of a triangle:

`A=(1)/(2) bh`

Insert the values:

`A=(1)/(2) *4.33*5`

Simplify:

`A=(1*4.33*5)/(2) \\\\A=10.825`

Multiply the area of one triangle by 4:

`10.825*4=43.3`

The surface area of the pyramid is
`43.3`
`cm^2`

:Done

Answer 2

B. 43.3

Explanation:

Find the area of one of the triangles:

`(1)/(2) *b*h`

`(1)/(2) *5*4.33=10.825`

10.825*4=43.3