morrischelce
morrischelce morrischelce
  • 30-05-2021
  • Mathematics
contestada

Top brainlist question
what is the size of angle QSR?​

Top brainlist question what is the size of angle QSR class=

Respuesta :

tcd55335
tcd55335 tcd55335
  • 30-05-2021

Answer:

2x = 140  x = 70

Step-by-step explanation:

If you add the other 2 angles together, you get 150. Subtract 150 from 360 to get 210. Divide that by 3 and you get 70. Because QRS is 2 times the size of PQR, it is equal to 140.

Hope that this helps!

Answer Link
Trancescient
Trancescient Trancescient
  • 30-05-2021

Explanation:

The sum of the interior angles of a quadrilateral is 360°.

x + 2x + 80 + 70 = 360

3x + 150 = 360

3x = 210

or

x = 70°

Therefore

angle Q = 70°

angle R = 2x = 140°

Answer Link

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