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Daisy is cutting a piece of fabric to use as a

Schüler

16:13 Uhr, 17.05.2022

Tag!
HI, dear supporters,

this is a similar problem to the ones

i

have been working on. Attachin' pic.

16:38 Uhr, 17.05.2022

the question asks me to find the area in square inches of section A
section A is a triangle.

so area of a triangle

= \frac{1}{2} (b \cdot h)

base= 7 inches

h = 7

inches

= \frac{1}{2} (49)

= 14.4 \in^{2}

the area of the section

A = 24.5 \in^{2}

is it correct?

16:40 Uhr, 17.05.2022

>

is it correct?
Yes, the area is

24.5 i n^{2}

It has to be assumed that the wrong

14.4

in your calculaton are due to a series of typos

16:59 Uhr, 17.05.2022

Sorry, Roman, yes, you're right.

\frac{49}{2} = 24.5 \in^{2}

17:09 Uhr, 17.05.2022

> \frac{49}{2} = 24.5 \in^{2}

Units do not just fall from the sky!

You may write

\frac{49 i n^{2}}{2} = 24.5 i n^{2}

\frac{7 i n \cdot 7 i n}{2} = 24.5 i n^{2}

or you may simply write

\frac{49}{2} = 24.5

and just mention the unit in your written answer.

The deeper reason for my complaint is the use of the equal sign. The unitless number

24.5

is not the same as the area

24.5 i n^{2}

.

BTW, try to type a space between "i" and "n" to avoid this forum software to turn an "in" into the "element of" character

\in

if used immediately after a number.

21:04 Uhr, 17.05.2022

Alright, thanks for the tips!

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