FINDING INTERIOR ANGLES OF TRIANGLES AND QUADRILATERALS PROJECT

Why is the sum of the interior angles of a triangle 180 degrees?

ACTIVITY

You are expected to work on the question we will ask in the triangle above. You are expected to enter the angle given in the question by moving the slider and then find the unknown angle by performing the operation.

Angle A=45[math]^\circ[/math],Angle B=90[math]^\circ[/math]Angle A'=?

Angle A=60[math]^\circ[/math],Angle B=60[math]^\circ[/math],Angle A'=?

Angle A=35[math]^\circ[/math], Angle B=110[math]^\circ[/math], Angle A'=?

Angle C=27[math]^\circ[/math], Angle B=90[math]^\circ[/math], Angle A=?

Why is the sum of the interior angles of quadrilaterals 360 degrees?

ACTIVITY

You are expected to work on the question we will ask in the quadrant above. You are expected to enter the angles given in the question by moving the slider and then find the unknown angle by performing the operation.

Angle A=212[math]^\circ[/math],Angle A'=72[math]^\circ[/math],Angle B=56[math]^\circ[/math], Angle B'=?

Angle A'=60[math]^\circ[/math],Angle B=116[math]^\circ[/math], Angle A=128[math]^\circ[/math],Angle B'=?

Angle A=137[math]^\circ[/math],Angle A'=45[math]^\circ[/math],Angle B=134[math]^\circ[/math],Angle B'=?

Angle A=135[math]^\circ[/math], Angle A'=45[math]^\circ[/math],Angle B=135[math]^\circ[/math],Angle B'=?

Information: FINDING INTERIOR ANGLES OF TRIANGLES AND QUADRILATERALS PROJECT