Question

The area of an equilateral triangle ABC is 50cm(squared). Find AB.

Answer 1

Draw the graph and find the height of the triangle.

Answer 2

what graph? this is MENSURATION>

Answer 3

well...you know area of triangle is \[\frac {bh}2\]
then...you know that h is just b\(\small \sqrt 3\)

so you can rewrite this as

\[\huge A = \frac{b^2\sqrt 3}2\]
for an equilateral triangle

does that he;[?

Answer 4

help*

Answer 5

i will check. thanks for the effort

Answer 6

welcome

Answer 7

wait no it doesnt...

Answer 8

why so?

Answer 9

i need all the sides

Answer 10

they have the same length.

Answer 11

as epulateral all sides are same

Answer 12

"all" the sides are equal... so if you can find b...you can find all sides

Answer 13

so substitute A for 50 then solve for b

Answer 14

got it?

Answer 15

why h is (square root of 3) ?

Answer 16

ahh you were not familiar of that huh...

let me try and draw it



that's how equilateral triangle looks like yes?

Answer 17

yes

Answer 18

then... since h divides the base into two parts... it becomes like this



agree?

Answer 19

yes