All angles of a rectangle are right angles.
Right angles measure up to 90 degrees.
JML is also a right angle which means 3x - 15 is equal to 90
3x - 15 = 90
3x = 105
x = 35
Answer:
(silk butterfly numerator )(butterfly denominator) 4cm/20cm = 1cm/5cm
100 x 4.2 would equal 420.
The answer is 4.2
