Which of the following triangles are possible to draw?
1 a triangle with angle measures of 30°, 60°, and 90°.
2 a triangle with angle measures of 20°, 50°, and 105°.
3 a triangle with angle measures of 100°, 40°, and 45°.
4 a triangle with angle measures of 55°, 35°, and 80°.
5 a triangle with angle measures of 25°, 65°, and 90°.

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

s

step-by-step explanation: