Question

sides bc,ba and ca of angle abc are produced to d,f and e respectively. If angle acd=120 degree and angle of=45 degree, find three angles of angle abc.(Tell the correct answer or i will report and take the points back...)

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(i) ∠ABC

(ii) ∠BAC and ∠ACB

Also the interior angles opposite to exterior are ∠ABC and ∠ACB

Question: 2

In the fig, two of the angles are indicated. What are the measures of ∠ACX and ∠ACB?

two of the angles are indicated

Solution:

In ∆ABC, ∠A = 50° and ∠B = 55°

Because of the angle sum property of the triangle, we can say that

∠A + ∠B + ∠C = 180°

50°+ 55°+ ∠C = 180°

Or

∠C = 75°

∠ACB = 75°

∠ACX = 180°− ∠ACB = 180°−75° = 105°