Question

Use a protractor to draw a quadrilateral so that three of its four sides measure 5 centimeters each. The angles between these sides have measures of 100° and 110° What is the length of the fourth side? o 5 cm 0 6.5 cm 0 7.5 cm O 8 cm​

Answer 1

The length of the third side of the quadrilateral is 7.5 cm.

Quadrilateral

A quadrilateral is a polygon that has four sides and four angles. The sum of interior angles in a quadrilateral is 360°. Types of quadrilateral are square, rectangle, rhombus, kite and so on.

Let x represent the length of the third side, hence:

x = 5 + (5 * sin(20)) + (5 * sin(10)) = 7.5 cm

The length of the third side of the quadrilateral is 7.5 cm.

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