The measures of the 2 acute angles of a triangle are in the ratio of 4 : 5. What arethe measures of the 2 angles?	Pick
A) 20° B) 70° C) 110° D) 120° E) 50°
If the ratio of the two angles is 4:5, then the measures of two angles can be written as 4x and 5x. Also the two acute angles of a triangle is equal to 90°. Hence   4x + 5x = 90   9x = 90   x = 10   Measures of the two acute angles are   4x = 4 × 10 = 40°   5x = 5 × 10 = 50°   50°
<result>E</result>
The measures of the 2 acute angles of a triangle are in the ratio of 4 : 5. What arethe measures of the 2 angles?