Cos Ф = 11/5. Calculate the value of angle Ф:
cos⁻¹(11/15) = 42.83342807°
sin(90-Ф) =sin (90-42.83342807) = sin(47.16657193) = 11/5
So cos Ф = sin(90-Ф) = 11/15
When two secant lines intersect each other outside a circle, the products of their segments are equal.
14(с + 14) = 10(10 + 20)
14с + 196 = 10 * 30
14с +196 = 300
14с = 300 - 196
14с = 104
с = 104/14
с ≈ 7.4
Answer:
Put a picture Then I can help hun
Step-by-step explanation:
Answer:
Area of the trapezoid = 36√6 cm²
Step-by-step explanation:
Area of the trapezoid = height ( base1+ base2/2)
height = √36
base1= 3√6
base 2= 3√54
Putting the values in the formula
Area of the trapezoid = height ( base1+ base2/2)
= √36 ( 3√6+3√54/2)
= 6 ( 3√6+3√6*9/2) Factoring
= 6 ( 3√6+3*3√6/2) Multiplying
= 6 ( 3√6+9√6/2) adding
= 6 ( 12√6/2)
= 6 ( 6√6)
= 36√6 cm²
Answer: 8100
Step-by-step explanation:
do the PI formula then divide by 2