imran15 imran15
  • 22-06-2018
  • Mathematics
contestada

how to solve this form 3

how to solve this form 3 class=

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mathstudent55
mathstudent55 mathstudent55
  • 22-06-2018
Triangle RST is isosceles since sides RS and ST are congruent.
That makes angles SRT and STR congruent.

m<SRT is given as m. m<STR is also m.

Triangle STU is equilateral, so it also equiangular, making m<STU = 60.

m<STR + m<RTU = m<STU

m<RTU is given as n.

m + n = 60
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