Question

what is the surface area of the triangular pyramid?

Answer 1

find the area of the non-shaded triangle and the shaded triangle.

Answer 2

once you get your answer for the non-shaded triangle, multiply it by 3 because there are 3 of them and add that with the shaded triangle to get your total surface area.

Answer 3

14

Answer 4

i got 672

Answer 5

is it wrong

Answer 6

yes, the formula for the area of a triangle is base times height divided by 2

Answer 7

if you do that for all the triangles and add them. it would be a much smaller number than 672

Answer 8

14 was closer to the answer.

Answer 9

21

Answer 10

is 21 right

Answer 11

there are 4 similar triangles

area of one triangle = base-height/2

A=4*3,5/2 = 2*3,5 =7

Apyramid = 7*4 = ?

Answer 12

28

Answer 13

right sure

Answer 14

28 cm^2 what mean that choice C. is right sure

Answer 15

was my pleasure

bye good luck

Answer 16

so it is c

Answer 17

yes sure right