Question

The measures of the three angles of a triangle are in the ratio 1:2:3. What is the measure of the biggest angle?

A) 30° B) 60° C) 90° D) 120°

Answer 1

1x+2x+3x=6x & 6x=180° deg angle sum property

x=30°, 2x= 60 °& 3x=90°

Angles of∆ are 30° 60° & 90°

so the measure of the biggest angle is 90°

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Pragna