Answer:
m∠BCD = 140°
Step-by-step explanation:
ABCD is cyclic quadrilateral. A property of cyclic quadrilateral states that the opposite angles of it sum up to 180°. Here:
m∠A + m∠C =180° and m∠B + m∠D = 180°
So, m∠A + m∠C =180°
m∠A = 40° (given in the question)
40° + m∠C = 180°
m∠C = 180° - 40° = 140°
∴m∠C = m∠BCD = 140°
Hello again!
The area of a triangle is A=1/2*b*h where b is base and h is height.
Since we have the area and base, we can set up an equation to find h and get the height:
18=1/2*3*h
6=1/2*h
12=h
So the height of the triangle is 12 feet.
Let sin be a
3a^2-17a+10=o
A =5 or 2/3
Sin =5rej
Sun=2/3 = 41.8 or138
Solution
One centimeter is equal to 10 millimeters. To find how much millimeters are in 46 centimeters you have to multiply by 10 since there are 10 millimeters in 1 centimeter .
1 cm = 10 mm
Calculations
46 x 10 = 460
There are 460 millimeters
46 cm = 460 mm