Question

i need extreme help. Anybody wanna try and help?

The diagram shows the dimensions of a metal brace used for strengthening a vertical and horizontal wooden junction. Classify the triangle formed by its sides. Then copy the triangle, measure the angles and classify the triangle by its angles.

Answer 1

lol extreme help

Answer 2

lol shut up i dont get itt

Answer 3

Well all the sides are different so the by sides, it is scalene

Answer 4

i know that

Answer 5

@ArkGoLucky is right

Answer 6

If you use a protractor and find that all angles are less than 90, it is a acute triangle

Answer 7

*an

Answer 8

to measure teh angles you would use the law of cosines...

Answer 9

how do i find the angle measurements though and what is the law of cosines?

Answer 10

Just use a protractor. They need some love too.

Answer 11

dont have one

Answer 12

Okay fine. The law of cosines states that c^2=a^2+b^2-2abcosC where a, b and c are side and C is the angle opposite the side c

Answer 13

ok well wedidnt learn that

Answer 14

just use the law of cosines..

Answer 15

ur teacher will be impressed

Answer 16

Well I guess you have two options. Follow the path less traveled and use the Law of Cosines even if you have not learned it or walk to you're neighbor's house and borrow a protractor.

Answer 17

well can you help me with that then

Answer 18

other wise you are going to need to physcially draw it all out and then use a prottractor to solve it.

Answer 19

and my neighbors are old and my other neighbor is dumb so no and @tejasvir can you help me with the cosines way please

Answer 20

Also, just by looking at the diagram, you can tell that none of the angles are equal to or greater than 90. And they are not equal because the sides are not equal. So it must be acute

Answer 21

okay but i mean if u havent learnt it it would be a little hard to understand so I would recommend doing it the way that you have learnt which is drawing it all out. but if you did here is a picture to explain what you need to do to solve each of the angles. http://prntscr.com/5dohcm

Answer 22

ok

Answer 23

wats the cos

Answer 24

cosine

Answer 25

its basically a plug and chug into your calculator.

Answer 26

ok

Answer 27

but just do it the other way

Answer 28

they both work

Answer 29

kk