Find the perimeter and area of the figure if each unit on the graph measures 1 centimeter. Round answers to the nearest tenth, if necessary. A(0,9) B(4,9) C(0, 1)

Area = 16 cm²

Perimeter = 20.9 cm

Step-by-step explanation:

To find the perimeter and area of the given triangle length of all sides of the given triangle will be required.

Use the formula to determine the distance between two points and ,

d =

Distance between A(0,9) and B(4, 9),

AB = = 4 cm

Distance between A(0,9) and C(0, 1),

AC =

AC = 8 cm

Distance between B(4, 9) and C(0, 1),

BC =

BC =

     =

     =

     = 8.9 cm

Area of ΔABC =

                        =

                        = 16 cm²

Perimeter of the triangle = AB + AC + BC

                                         = 4 + 8 + 8.9

                                         = 20.9 cm

answer: i don't understand. what are the options

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq