Question

13.
The angle A of a triangle ABC is equal to the sum of the other two angles. Also the ratio o
to the angle C is 2:3, then three angles are
(1) 90°,36,54 (2) 95°,49,36° (3) 95,31*,54
(4) 90°,60°, 30°
​

Answer 1

Answer:

(1) is the answer

a=b+c

90= b+c

90=2x+3x

x=18

b=2x=36°

c=3x=54°

Step-by-step explanation:

This is done by trial and error.

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