Help

[cinder lintel]

You can use the cosine rule to find the unknown length of the side opposite to the known angle

a^2 = b^2 + c^2 - 2bc*cosθ

b and c are the sides next to the known angle

[sweet grotto]

Or you could also use the fact that triangle ABC is congruent to triangle ZYX

Which means that all of the corresponding angles and sides are congruent.

hint:|| side BC from triangle ABC corresponds to side YX from triangle ZYX||

And you can also use the fact that triangle ABC is similar to triangle WVU

Which means that the corresponding sides are proportional to each other

hint:|| AB/WV = AC/WU||

[chilly ocean]

omg thanks so much this was such an eye opener LOL

[verbal bone]

7 times a 2 digit number is= 4 times the no: obtaned by revrsng the ordr of the no: .sum =3 find no;

@verbal bone

[sweet grotto]

Hi Sreya!

You posted your question in the wrong channel.

If you want to get help, go here: #❓how-to-get-help

I believe I can help you though. I just need to know if sum = 3 means the sum of the digits = 3.

@verbal bone

[lavish thunder]

.close