Question

16) An exterior angle of a triangle is 100° and the interior opposite angles are in the ratio 1:4, measure of interior angles are ​

Answer 1

Answer:

$1x + 4x = 100 \\ 5x = 100 \\ x = \frac{100}{5} \\ x = 20$

therefore interior angles are

$1 \times 20 = 20 \\ 4 \times 20 = 80$

20°+80°=100°