Question

I need help with this work sheet someone helped me with some of the stuff but i need help plugging in the values to these
A) use Pythagorean Theorem:
d^2=a^2 + b^2
B) A= a*c
C) V=1/2 * a*b*c
D) surface area = sum of all surfaces:
2(1/2 ac)+dc+ac+bc

Please help me

Answer 1

b=8; a=8; c=12

Answer 2

what part are you needing help with?

Answer 3

Everything I don't understand it, Im really confused can you please help me

Answer 4

well; lets start with the easier ones:

A = a*c

A = 8*12 ; what is the value for A then?

Answer 5

96?

Answer 6

is that a guess? :) yes, 8*12 = 96

Answer 7

yes that was a gues lol

Answer 8

V = (1/2) * a*b*c

V = (1/2)* 8*6*12 ; what is the value for V?

Answer 9

just work it left to right

what is (1/2)*8= ?

Answer 10

is it 12? im confuesd on this part

Answer 11

\[\frac{1}{2}*\frac{8}{1}=\frac{8}{2}\]

what is 8 divided by 2 = ?

Answer 12

4

Answer 13

good; and 4*6 = ?

Answer 14

24

Answer 15

good; and the last part of it is:

24*12 = ?

Answer 16

288

Answer 17

yep :) so V = 288 right?

Answer 18

yes lol

Answer 19

Sa = ab+dc+ac+bc

Sa = but we dont know d yet; so lets hold that one

d^2 = a^2 + b^2

d^2 = (8)(8) + (6)(6) ; what is the value for d^2?

Answer 20

100?

Answer 21

good

d^2 = 100 ; lets take the square root of both side to find 'd'

sqrt(d^2) = sqrt(100)

d = ?

Answer 22

is it 10?

Answer 23

it is :)

Answer 24

so we now have all the values needed for the Sa.

a = 8; b=6; c=12; d=10

Answer 25

Sa = ab + c(a+b+d)

Sa = 8(6) + 12(8+6+10); what is Sa ?

Answer 26

84

Answer 27

let me dbl chk that:

Sa = 8(6) + 12(8+6+10)
Sa = 48 + 12 (24)
Sa = 48 + 288

Sa = 336

Answer 28

okay i see, can we do the first one now
A) use Pythagorean Theorem:
d^2=a^2 + b^2

Answer 29

there is one part that is off; and that the area of the triangular base; you read it wrong.... it wants to know the area of the triangle part

Answer 30

Yes; A) = 10 , we worked thru all these already right?

Answer 31

oops forgot lol, can you help me with another problem?

Answer 32

part B) wants to know:

A = (1/2) *a*b

A = (1/2) * 8 * 6; what is A?

Answer 33

24

Answer 34

very good :)

Answer 35

write up another question on the left to see if others can help you out as well :) thnx

Answer 36

okay