Question

Find the perimeter of the figure. Round to the nearest tenth.

Answer 1

Perimeter of triangle= side a +side b + side c

Answer 2

everytime i plug it doesnt follow the theorem .

Answer 3

which bottom do i use? theres 4 numbers and it confuses me.

Answer 4

Its a 30 60 90 triangle. IF u use that theorm u will get the answer

Answer 5

oops sorry its not a 30-60-90 triangle if it were the hypotenuse would be the double of any sides but its not like that here, my mistake

Answer 6

what i would do is to use cosine theorem and find the cosine using the right triange on the lieft

Answer 7

It is a 30 60 90 triangle

Answer 8

im still really confused...

Answer 9

its not 30 60 90, it could be if the hypotenuse was 18

Answer 10

just use Pythagorean's theorem in the right triangle: x^2 = 9^2+5^2 => x=sqrt(106) then add it 32+13

Answer 11

barbillus u can;t

Answer 12

barbillus the triangle doesn;t work like that.

Answer 13

isnt that a perpendicular side and the sides are 9 and 5 and the hypotenuse is unknown?

Answer 14

nvm, sry its rlly late for me

Answer 15

I was wrong

Answer 16

ok, anyway, just forget about anything about 30-60-90, cosine theorem etc, two approaches: we have a right triangle the sides of which are 5 and 9 and an unknown hypotenuse we can find it using Pythagorean's theorem and add 32 + 13 to it to find the perimeter of the green field

Answer 17

so... its 45?

Answer 18

no, 45 + sqrt(106)

Answer 19

around 55,3