Question

The formula gives the height h of a parallelogram with area A and base b.

What is the height of a parallelogram with an area of 78 cm2 and a base of 13 cm?

Answer 1

Where is the formula?

Answer 2

h=a/b

Answer 3

\(h=A/b\)
substitute \(A\) = 78cm^2
and \(b\) = 12cm

Answer 4

ok so add b and a

Answer 5

there is no addition sign,

`/` is for division

Answer 6

ok so i have to divid them right

Answer 7

\[h= \frac Ab=\frac{78\,\text{cm}^2}{12\,\text{cm}}=\frac{78}{12}\frac{\text{cm}^2}{\text{cm}}=\]

Answer 8

ops... 12 = 13

Answer 9

try with 13

Answer 10

78/13 = ?

cm^2/cm = ??

Answer 11

do you know your 13 times tables?

Answer 12

78/13=6

Answer 13

yes i do

Answer 14

good, and what is

cm^2 / cm

Answer 15

6

Answer 16

so you have the number, but what is the units?

Answer 17

?

Answer 18

cm^2 / cm
= cm*cm/cm
=

Answer 19

6cm

Answer 20

yes

Answer 21

one min i have more

Answer 22

Solve the word problem.

The height of a triangle with base b and area A is given by the formula h = .

What is the height of a triangle with area 26 cm2 and base 8 cm?

A.
1.625 cm

B.
3.25 cm

C.
3.5 cm

D.
6.5 cm

Answer 23

For a triangle \[A = \tfrac12bh\]
so \[h=2A/b\]

Answer 24

now A = 26 cm2

and b = 8 cm

Answer 25

times a and b