Question

3. a) Can you construct a triangle with angles 60°, 80º and 50° ? Why? b) If the measure of one angle of a right angled triangle is 55°, find the other two angles.​

Answer 1

Answer:

Possible Answers:

C=72

C=53

None of these

C=65

C=70

Correct answer:

C=65

Explanation:

First, know that all the angles in a triangle add up to 180 degrees.

Each triangle has 3 angles. Thus, we have the sum of three angles as shown:

180=A+B+C

where we have angles A, B, and C. In our right triangle, one angle is 25 degree and we'll call that angle A. The other known angle is 90 degrees and we'll call this angle B. Thus, we have

180=25+90+C

Simplify and solve for C.

180=115+C

C=65

Answer 2

Answer:

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