The 3 sides should obey the Pythagorean Theorem
29^2 = 21^2 + 18^2
29^2 does not equal 441 + 324 = 765
29^2 = 841
Answer:
25.6 feet to the nearest tenth.
Step-by-step explanation:
The fallen tree and the ground make a right-angled triangle with the side opposite the 40 degree angle = 10 ft and the hypotenuse is the length of the tree above 10 ft.
So sin 40° = 10 / x where x is the hypotenuse.
x = 10 / sin 40°
x = 15.56 ft
So the height of the tree was 10 + 15.56 = 25.56 feet (answer).
Answer: 17 in.
Step-by-step explanation:
The sides of an equilateral triangle measure 16 inches. The midpoints of the sides of the triangle are joined to form another equilateral triangle with sides that are half the length of the outer triangle. This process is continued until three triangles are inscribed in the first triangle. The sum of the perimeters of all four triangles is 17 in.