Question

Find the volume of the prism.


Step 1 out of 2:
Find the base area B of the trapezoidal prism.

B = 1/2 (b1 + b2)h

Area of a trapezoid with bases of lengths b1 and b2 and height h

= 1/2 (11 + 10)(8)

Substitute 11 for b1, 10 for b2, and 8 for h.

= cm2

Answer 1

EWO!

Answer 2

Hi! Do you know how to find the solution?

Answer 3

S-somewhat

Answer 4

ok what would be the base, height and other base?

Answer 5

the equation is \[A=\frac{ a+b }{ 2 } \]

Answer 6

(11+10)(8)

Answer 7

you put the base 1 in (A) and put base 2 for (B)

Answer 8

Correct so whats the equation?

Answer 9

\(\color{#0cbb34}{\text{Originally Posted by}}\) @ZombieLover
the equation is \[A=\frac{ a+b }{ 2 } \]
\(\color{#0cbb34}{\text{End of Quote}}\)

Forgot about the height :)

Answer 10

\(\color{#0cbb34}{\text{Originally Posted by}}\) @AZ
\(\color{#0cbb34}{\text{Originally Posted by}}\) @ZombieLover
the equation is \[A=\frac{ a+b }{ 2 } \]
\(\color{#0cbb34}{\text{End of Quote}}\)

Forgot about the height :)
\(\color{#0cbb34}{\text{End of Quote}}\)


oops well isn't it \[H \frac{ 11+10 }{ 2}\]?

Answer 11

IS the answer 84 cm2

Answer 12

Like in your screenshot

\(\text{Area} = \dfrac{\text{Base}_1 + \text{Base}_2}{2} \times \text{height}\)

Answer 13

ohhh i was right then? the 8 is the base!

Answer 14

i was confused for a sec

Answer 15

\(\color{#0cbb34}{\text{Originally Posted by}}\) @ZombieLover
ohhh i was right then? the 8 is the base!
\(\color{#0cbb34}{\text{End of Quote}}\)
HIEGHT* i mean

Answer 16

\(\color{#0cbb34}{\text{Originally Posted by}}\) @LadyRavyRay
IS the answer 84 cm2
\(\color{#0cbb34}{\text{End of Quote}}\)

That's the area of the trapezoid

Now multiply by the height of the prism which is 21

Answer 17

1,764 cm2

Answer 18

Well done!

Answer 19

THANK YOU!!!

Answer 20

My pleasure :D