Question

30 POINTS !!

Which dimensions can create only one unique triangle?

three angles measuring 75 degrees, 45 degrees, and 50 degrees

three sides measuring 14 m, 11 m, and 18 m

three angles measuring 40 degrees, 50 degrees, and 60 degrees

three sides measuring 3 cm, 4 cm, and 8 cm



What is the circumference of the circle? Use StartFraction 22 over 7 EndFraction for Pi.


A circle with radius 21 centimeters.

44 cm

66 cm

132 cm

154 cm



Figure FGHJ is shown below.

Figure F G H J has 4 sides. Sides F J and G H are congruent and parallel, and sides G F and H J are congruent and parallel. Angles G and J are 130 degrees.


Which names accurately describe figure FGHJ? Select two options.

parallelogram

quadrilateral

rectangle

rhombus

trapezoid

Answer 1

1. 14m, 11, 18m

2. 132 (rounded from 131.946)

3. Quadrilateral (duh it has 4 sides) and a rhombus?

Explanation:

1 a unique triangle is a triangle with side lengths that are ALMOST exactly like a triangle. I used the pyragothem theory (a^2 + b^2 equals c^2) and this one was soo close to 18 (17.8)

2 the equation for the circumference of a circle is C=dpi. the radius is half of the diameter so 21 time 2 is 42 then multi[ply by pi.

3 is definitely already a quadrilateral (all of them have 4 sides) and the only shade i can think of that can have a 130 degrees for 2 angles would be a longgg rhombus ( or diamond)