Question

Engineering Drawing.

Answer 1

@BAdhi

Answer 2

you can find R_1 by looking at the triangle created by ( aligning R_1 and 120 radius) and (R_1 and 20 radius on the lower right) and 160

Answer 3

But we have 2 unknown sides

Answer 4

Oh, 20 + R and 120 + R

Answer 5

(100)^2 + ( 20 + R)^2 = (120 + R)^2

Answer 6

How about R3

Answer 7

two sides and an angle ;)

Answer 8

(30 + R3) * 0.5 = R3
15 + 0.5R3 = R3
0.5 R3 = 15
R3 = 30 ?

Answer 9

I think so

Answer 10

Find x by looking at the complete 120 line (i hope you can find it easily) ;)

Answer 11

I am dumb.

Answer 12

x= 20 ?

Answer 13

sum of these three will equal to????

Answer 14

30 + 10 + x = 60
x = 20 ? what am I mistaken in ?

Answer 15

for \(R_3\) I got this result:

we have:
\(L=80 \tan(30) \)
so we can write this proportion:
\[\frac{{80 - x}}{x} = \frac{{80}}{L}\]
from which I get:
\[x = {R_3} = \frac{{80}}{{\sqrt 3 + 1}}\]