Question

The measure of angle RTS is​

Answer 1

Answer:

JRS+TRS = 180°

140+TRS = 180°

TRS = 180-140

[ TRS = 40° ]

SUM OF MEASURES OF ALL ANGLES OF TRIANGLE IS 180°

TRS + RST + STR = 180°

40 + 3x+4 + 8x+4 = 180°

40 + 11x + 8 = 180°

11x + 48= 180°

11x= 180-48

11x = 132

x = 132/11

[ X = 12 ]

RTS = 8x+4

= 8 X 12 + 4

= 96+4

[ RTS = 100 ]