PQRS is a rectangle with a length of 10 inches and a width of 4 inches. What is the measurement of angle A, the angle formed by the diagonal PR and the base PQ?

Question

anonymous · Answer

attachment

dan815 · Answer

as michaelbuble once said, Tan(Angle)=opp/adj

dan815 · Answer

Tan(A)=4/10

anonymous · Answer

how do i calculate that

dan815 · Answer

on your calculator

anonymous · Answer

i dont have one thats the thing

dan815 · Answer

A=Tan^-1(4/10)
you have to use the inverse tan function

dan815 · Answer

are you on your laptop?

dan815 · Answer

http://www.wolframalpha.com/

anonymous · Answer

okay that didnt do anything
ill give you amedal i just need to pass this

dan815 · Answer

thats an online calculator

anonymous · Answer

ok all it gave me was a fraction

anonymous · Answer

21.8°
23.6°
66.4°
68.2° this is what i need to choose from

dan815 · Answer

http://www.wolframalpha.com/input/?i=arctan%284%2F10%29

anonymous · Answer

thank you

dan815 · Answer

watch this video too https://www.youtube.com/watch?v=isrXeEh7Y3Y