Answer: 45
Step-by-step explanation:
It would be B) 6 cm. If you construct the triangle, and add the angle measure of 80 + 50= 130 , and then 180- 130= 50, you see that the triangle is isosceles.
The difference in ' x ' (left or right) between D and F is 5 units.
The difference in ' y ' (up or down) between D and F is 2 units.
The straight-line distance between them is
√ (5² + 2²)
= √ (25 + 4)
= √ (29)
= 5.3851.....
or 5.4 (rounded to the nearest tenth)
The correct answer is D. 40
