If we draw a perpendicular line from one of the vertices of the triangle we get 2 right angled triangles each with altitude 9 ins and vertex angle = 30 degrees. So:-
cos 30 = 9 /h where h = one of the sides of the equilateral triangle
h = 9 / cos 30 = 10.392 inches
Therefore the perimeter of the triangle = 3 * 10.392 = 31.1769 ins
Answer is 31.18 inches to the nearest hundredth.
Regression 1. Urstsitdyxkyxktakgzkydlyxkyskgz
Answer:
1/40
Step-by-step explanation:
everytime it goes over one it goes up 40
hope this helps
please make brainliest
Answer:
the answer is 3.75
Step-by-step explanation:
because 3/5 equal to 4/x. x=3.75
1) 2 * (10 * 7 + 7 * 1,25 + 10 * 1,25) = 2 * (70 + 8,75 + 12,5) = 2 * 91,25 = 182,5 square inches - a surface area
2) 182,5 * 0,012 = <span>$</span>2,19 - answer.
