Answer:
The answer is C.
Step-by-step explanation:
Hope this helps!
Answer:
A
Step-by-step explanation:
Answer:
360
Step-by-step explanation:
Formula
Sides -2 ×180
4-2=2×180=360
Answer:
A ≈ 9.0 ft²
Step-by-step explanation:
70° = 7π/18 radians
Area of the arc section
A = ½(7π/18)8² = 12⁴/₉π ft² = 39.09537 ft²
As the triangle is isosceles, the other two angles are (180 - 70) / 2 = 55°
law of sines 8 / sin55 = L / sin 70 L = 9.17722
so the triangle height = √(8² - (9.17722/2)²) = 6.55321
Area of triangle ½(6.55321)(9.17722) = 30.07016
Area = 39.09537 - 30.07016 = 9.025211 ≈ 9.0 ft²
A. x-12=15 x = 27
b. x+x+1+x+2 = 234 3x = 231 x=77 so the numbers are 77,78,79