Question

Help me someone??? 1.A square pyramid has side lengths of 10 units and a height of 7.6 units. The slant height of each lateral face is 9.1 units. What is the surface area of the pyramid to the nearest unit?

A. 82 units2
B. 182 units2
C. 282 units2
D. 382 units2

Answer 1

notice the bottom of it, is a "square pyramid", meaning the bottom is a square, if one side is 10, well, all sides are 10, so you get the Area for that

look at one of the faces of the pyramid, it's just a triangle really
look at the triangle's base how long it's
look at the triangle's height, how high up it goes

area of a triangle is 1/2 x base x height

Answer 2

@jdoe0001 Okay , So how exactly would I find the area of the triangle?

Answer 3

look at the triangle's base how long it's
look at the triangle's height, how high up it goes

area of a triangle is \(\bf \cfrac{1}{2} \times base \times height\)

Answer 4

@jdoe0001 1/2 x 10 x 7.6?

Answer 5

the height of the pyyramid is not the height of one of its faces

Answer 6

ugh. I don't get it still :? @jdoe0001