Question

,

Answer 1

Which ?

Answer 2

hmm, I think she means all

Answer 3

hmm for 10 through 12
is really just the same thing over

get the area of the triangular face of the shape, and multiply THAT by the length of it

Answer 4

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

notice the "tick marks" in the 10th and 11th
that gives away the missing sides

Answer 5

10: .5bhl

a²+3²=6²
a²+9=36
a²=27
a=5.2??? Not really sure

Answer 6

.5(6)(5.2)(18)
=280.8?

Answer 7

Gimme 1 sec..

Answer 8

11. .5bhl
.5(3)(3)(5)
=22.5

Answer 9

12) .5bhl

.5(12)(20)(6)
=720

Answer 10

base*Height*Length