Can Anyone Explain?

[scenic adder]

What have you tried?

[amber gale]

im gonna guess c

[short crow]

Maybe a hint to get you on the right track:
Tangent of x in this case will be equal to negative tangent of angle RMS

[thorn crypt]

thats the problem, i only found the lengths for triangle PQR

[thorn crypt]

finding the length

wait, ll explain the process

QR equals to QS so QS is 7cm

if i did triangle PQR, i get the length of PR which is 24cm

i divide 2 becomes 12 for MR

so i did squareroot 12 square plus 7 square

squareroot 193 then becomes 13.9 (rounded off)

thats where..im stuck.

[short crow]

You're on the right track, remember all you actually need is MR and RS

[steep harness]

u dont hve to find root193

x+ angle RMS = 180
angle RMS = 180 - x
tan angle RMS = tan (180 - x )

hope u understood

[thorn crypt]

oh

[thorn crypt]

ill just have to do tan (180-x) ?

[steep harness]

try it

they asked tan x

with tan (180 - x) u can get the value of tan x

[thorn crypt]

wait

tan 180- tan x?

sorry i didnt revise sin cos tan

[steep harness]

tan (180 - x )= -tanx

[steep harness]

its fine

[thorn crypt]

so 180 is tan x

i mean 180=x

[thorn crypt]

oh

[steep harness]

tan (180 - x ) = -tan x

[thorn crypt]

thank you, just knew that the whole triangle length solving was a trick rip

[steep harness]

🙂

[thorn crypt]

.solved