Question

Finding the area!

Answer 1

find the surface area

Answer 2

is that a triangular base? or a square base?

Answer 3

it is a triangle

Answer 4

triangular. That's why I don't understand

Answer 5

(bh/2)4 right? since it's composed of 4 equilateral faces..

Answer 6

They're equilateral? @lgbasallote

Answer 7

well...it wasnt stated nor shown that it wasnt right? normally people assume it's equilateral if it's like that...

Answer 8

So how do I fin the base? @lgbasallote

Answer 9

hmmm..uncle rhaurkus said it was a triangular base so it's the same with the faces...the surface area = (bh/2)4 or 2bh

Answer 10

so what do you do?

Answer 11

b= 13
h =11

2bh = 2(13)(11)

Answer 12

286? I don't divide it by two? @lgbasallote

Answer 13

it's (bh/2)4 remember? so the 2 gets canceled and give you 2bh

Answer 14

The triangular faces cannot be equilateral with a base of 13 and an altitude of 11 drawn to that base. The altitude would have to be 6.5 sqrt(3) which does not equal 11.

Answer 15

oh my gosh, I am so bad at geometric shapes. Do I use Soh Cah Toa?

Answer 16

This problem, in my opinion, is defective because there are no instructions. In Euclidean Geometry, eye-balling lengths is not allowed. By instructions, I mean something like what you see on the attachment.

Answer 17

I agree, the information given is too little.