1103021510 | math4u.vsb.cz

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Project ID:

1103021510

Source Problem:

Accepted:

1

Clonable:

1

Easy:

1

A regular nonagon

A B C D E F G H I

is inscribed in a circle. Calculate the measures of all interior angles of the quadrilateral

A B E H

. (See the picture.)

α = 120^{\circ}; β = 100^{\circ}; γ = 60^{\circ}; δ = 80^{\circ}

α = 100^{\circ}; β = 120^{\circ}; γ = 60^{\circ}; δ = 80^{\circ}

α = 100^{\circ}; β = 100^{\circ}; γ = 80^{\circ}; δ = 60^{\circ}

α = 110^{\circ}; β = 130^{\circ}; γ = 70^{\circ}; δ = 50^{\circ}