Linear Equations in One Variable

SAT Math· difficulty 4/5

The angles of a triangle are in the ratio 2:3:42:3:4. What is the largest angle in degrees?

  • A

    70

  • B

    80

    check_circle
  • C

    60

  • D

    90

Explanation

2k+3k+4k=1802k + 3k + 4k = 180, so 9k=1809k = 180 and k=20k = 20. Largest =4k=80= 4k = 80.

Want 10 more like this — adaptive to your weak spots?

Related questions