Examples with solutions for Parts of a Triangle: Is it possible...?

Exercise #1

Given the triangle ABC.

Dado ∢B>90° , A=20° ∢A=20°

Is it possible to calculate a ? B ∢B ?

If so, find how much the angle is equal to.

AAABBBCCC20°

Video Solution

Answer

No

Exercise #2

ABC is a right triangle.

A=20° ∢A=20°

Is it possible to calculate the size of C ∢C ?

If so, what is it?

AAACCCBBB20°

Video Solution

Answer

Yes, 70°.

Exercise #3

ABC is an obtuse triangle.

C=12A ∢C=\frac{1}{2}∢A

B=3A ∢B=3∢A

Is it possible to calculate A ∢A ?

If so, then what is it?

AAABBBCCC

Video Solution

Answer

Yes, 40°.