Question

in the figure, the angles of elevation of P and Q from A are 38 and 28 respectively. If PQ=20m, find the lengths of AQ and QR.

Answer 1

let QR = x
then PR=x+20
use trigonometry (I won't tell you which identity :) ) to find an expression for AR with both of the equations. Set the two expressions equal to each other to find x.

Answer 2

ahh, is it 90.8m?

Answer 3

for what?

Answer 4

AQ

Answer 5

ah, i got the both answers.
AQ=90.8m
QR=42.6m

Answer 6

how dd you get those so fast?

Answer 7

sine formula

Answer 8

oh. I did it the hard way

Answer 9

you're better than me at this

Answer 10

not at all:)

Answer 11

any other questions?

Answer 12

many