Question

I'll fan and give medal.

The area of a triangle is 25 square iches. Its base (b) is 5 inches. What is its height (a)?

Answer 1

\[Formula: \frac{ 1 }{ 2 }ba\]

Answer 2

be sure plug in your numbers like this

Answer 3

\[25 inches ^{2} = \frac{ 1 }{ 2 }5a\]

Answer 4

then solve for h by dividing both sides by 2.5

\[25inches ^{2} = 2.5h \]

Answer 5

\[\frac{ 25 }{ 2,5 } = 10 inches \]

Answer 6

sorry that should be 2.5, then you would get the height to be 10 inches.

Answer 7

and it says to check it so how do i do i check it

Answer 8

you take your answer and plug it back in

Answer 9

\[a = \frac{ 1 }{ 2}bh \]

Answer 10

plug in all your numbers

\[25 = (0.5)(5)(10) \]

Answer 11

so clearly 0.5x5 = 2.5 and 10*2.5 = 25

so on the left side we have the same thing.

25 = 25

that's how we know it's right

Answer 12

@expressing.myself00 want me to give you a problem?

Answer 13

maybe later so I can fully get it before y math test but I'm just trying to get this turned in now so I don't stay behind in my classes

Answer 14

do you get what I wrote?

Answer 15

yeah but Imma study it more after I turn this in

Answer 16

so how would dividing both of the sides look? like what would that step of this problem look like?

Answer 17

Okay let me show you

Answer 18

@expressing.myself00 I want to show you the entire process step by step. look this over



we plug in all the values



now we simplify by multiplying 5 times one half and we get this



You see that we MUST solve for H. we do this by getting H by itself.

to do THIS we see 2.5 times H we must divide both sides by 2.5 to get H by itself.



Now we check our work. We check our work by plugging everything in.
in an equation what we have on the right side must equal what we have on the left side
otherwise it's not right.

we plug in h = 10 and b = 5 into the original equation and find that 0.5*5 = 2.5x10 = 25.
that's our original area so that's how we know it's correct.