Select all the conditions for which it is possible to construct a triangle. a triangle with angle measures 60, 80,and 80. A triangle with side lengths of 4cm, 5cm, and 6cm. A triangle with side lengths of 4cm, 5cm, and 15cm. A triangle with side lengths of 4cm, 5cm, and a 50 degree angle. A triangle with angle measures 30, 60, and a 3cm side length. PlZ HELP THE QUARTERS ALMOST OVER AND THIS IS MY LAST TEST FOR MATH!!

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

i think the answer is a.( -3, -1 )

no

step-by-step explanation:

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees