Question

I need help please! with area of triangles

Answer 1

im bad at geometry!

Answer 2

1/2 x Breadth x Height

Answer 3

\[Area_{\Delta} = \frac{1}{2}Base \times Height\]

Answer 4

i know. but i need help solving a question.!

Answer 5

im sorry its base.

Answer 6

post your question here!

Answer 7

Breadth is a decent word for it

Answer 8

ok hold on.

Answer 9

use 1.7 as the value of square root 3. what is the area of equalateral triangle abc in sq. in

Answer 10

what are the lengths of the sides of the triangle?

Answer 11

here ill send a picture.

Answer 12

Ok, so what is the length of the base?

Answer 13

I don't know..

Answer 14

its equilateral

Answer 15

4?

Answer 16

yes

Answer 17

Ok.

Answer 18

so now we need the height (the length of the blue line through the middle)

Answer 19

how?

Answer 20

pythagoras theorem

Answer 21

Well, we have 2 right triangles described in the middle of that equalateral triangle.

Answer 22

yes.

Answer 23

\[2^{2} + x ^{2} = 4^{?}\]

Answer 24

so the length of the hypotenuse of either of them is 4. and one leg is 2 (half of 4). What is the length of the other leg?

Answer 25

its 2?

Answer 26

\[x = \sqrt{4^{2}-2^{?}}\]

Answer 27

which is sqrt of (16 - 4)

Answer 28

which is sqrt 12.

Answer 29

since sqrt 3 is given by 1.7

Answer 30

yes,

Answer 31

sqrt 12 = sqrt(4x3)

Answer 32

sqrt(4x3) = 2x(sqrt3)

Answer 33

which is 2x1.7 = 3.4, therefore the length is 3.4 and the base 4.

Answer 34

using the formula 1/2 b h = 0.5 x 3.4 x 4.

Answer 35

the answer is 6.8 inches

Answer 36

are u sure

Answer 37

this means you don't understand how it's done!

Answer 38

the more important question is are YOU sure.

Answer 39

Because if you aren't sure, then you have no way to know if holy did it right.

Answer 40

yes.

Answer 41

NO I UNDERSTAND! :) now.

Answer 42

can u guys help me with one more like that?

Answer 43

?

Answer 44

its the same question as the previous. if you understood you should be able to do this.

Answer 45

since its an equilateral triangle. use the formula to get the length of the triangle.

Answer 46

using the formula \[a ^{2} + b ^{2} = c ^{2}\]

Answer 47

you can find out what is the height/length of the triangle.