Question

can someone plz help me.
The net below shows four equilateral triangles. What is the total surface area of the triangular pyramid in square feet?

Answer 1

192 ft

Answer 2

ok hold on..

Answer 3

k

Answer 4

formula for area of a triangle ?

Answer 5

im sorry I can't help you

Answer 6

there is 9 ft the length of the base ?

and 7,8 ft the lengthof the height ?

Answer 7

yes ?

Answer 8

maybe this could help you out.
The formula to calculate the total surface area of a triangular pyramid is 1⁄2(a × b) + 3⁄2(b × s).

Answer 9

actually I think I figured the answer out. So we can remove A and C. now what do you think the answer is B or D?

Answer 10

bb I think

Answer 11

*b*

Answer 12

no

Answer 13

there are 4 equilateral congruent triangles

so just calcule area of one from these 4 and multiplie this area by 4

use formula

A_triangle = base × height /2

Answer 14

W

Answer 15

Dam bro can solve

Answer 16

chat I'm late

Answer 17

total surface area=area of four equilateral triangles
\[=4\times \frac{ 1 }{ 2}\times 9\times \times 7.8=140.4~ sq.ft.\]

Answer 18

🤫🧏

Answer 19

2 bh, right??? Because 2 equilateral triangles equal 1 square, so 4 of them would be 2 square's