## allopersonwhat 2 years ago Find the lateral area of the pyramid to the nearest whole unit. 176 m2 352 m2 704 m2 416 m2

1. allopersonwhat

2. allopersonwhat

@wolfgirl

3. allopersonwhat

do you know how to do this?

4. wolfgirl

If it is a regular pyramid you need to find out the base perimeter, multiply it by the height of the sides (when considered as triangles) and divide by two. The height of the side can be found using Pythagoras's formula if you know the height of the pyramid and the length of a side. The side height of a pyramid is also known as the slanted height or L in a formula. Formula:permiter of base x L(side height) ( P of B)(L) p x L(slant) I haven't done this in awhile

5. wolfgirl

The lateral area of a regular pyramid is 1/2p*l where p is the perimeter of the base and l is the slant height.

6. allopersonwhat

so wiat do i do 3.14 x l which is i dont know what number that is

7. wolfgirl

umm no. The formula would be LA=1/2pl P=the perimeter of the base. The permimeter of the base would be 8(4) because you have four sides of the base. L=22 You multiply P and L and then divide it by 2.

8. allopersonwhat

ok so the perimeter is 8 and 4 we gotta add those both twice 8 + 8 and 4+ 4 = 24

9. allopersonwhat

so the perimeter of the base shoulod be 24 right?

10. wolfgirl

The perimeter is not 8 and 4. The perimeter is 8x4 because there are 4 sides and they all measure 8m

11. allopersonwhat

oh i thought that sign meant different nevermind redo

12. allopersonwhat

k 32

13. allopersonwhat

14. wolfgirl

Yes, that's correct.

15. allopersonwhat

ok thx so much

16. wolfgirl

No problem!

17. allopersonwhat

lol bai!!

18. wolfgirl

Haha bye