Sum of Exterior Angles

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Explanations 1

As we know, the sum of the interior angles α\alphaα, β\betaβ, and γ\gammaγ is 180∘180^\circ180∘. Our exterior angles are 180−α180-\alpha180−α, 180−β180-\beta180−β, and 180−γ180-…
By Freya Edholm

Problems 6

What is the measure of angle ppp in the above figure?
If, in the above figure, 1=60∘1 = 60^{\circ}1=60∘ and 2=30∘2 = 30^{\circ}2=30∘, 4=?4 = ?4=?
If, in triangle ABCABCABC angle A is 40∘40^{\circ}40∘, and the external angle corresponding to angle B is 120∘120^{\circ}120∘, what is the measure of the external angle correspo…
If, in triangle ABCABCABC angle A is 45∘45^{\circ}45∘, and the external angle corresponding to B is 135∘135^{\circ}135∘, what is the measure of the external angle corresponding …
If, in triangle ABCABCABC the external angle corresponding to angle A is 45∘45^{\circ}45∘, and angle B is 15∘15^{\circ}15∘, what is the measure of the external angle correspondi…
If, in triangle ABCABCABC the external angle corresponding to angle A is 100∘100^{\circ}100∘, and angle B is 60∘60^{\circ}60∘, what is the measure of the external angle correspo…