9514 1404 393
Answer:
A, B, D
Step-by-step explanation:
There is no angle CDE shown. The only angle shown has its vertex at C, which must be in the middle of the angle's 3-letter name.
Rays AB, CD, CE are shown, as is angle DCE (also known as angle ECD).
Answer:
.12 km/min.
Step-by-step explanation:
1.8 kilometers / 15 minutes = .12 kilometers per minute
A=2πrh + 2πr²
A = 2 (3.14)(3)(18.2) + 2(3.14)(3)²
A= 342.888+ 2(3.14)(9)
A= 342.888 + 56.52
A = 399.408 units²
Answer: false false true true
Step-by-step explanation:
there is none
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To extend that further, if the polygon has x sides, the sum, S, of the degree measures of these x interior sides is given by the formula S = (x - 2)(180).
For example, a triangle has 3 angles which add up to 180 degrees. A square has 4 angles which add up to 360 degrees. For every additional side you add, you have to add another 180 degrees to the total sum.
Quadrilateral ABCD has, of course, four angles. Those four angles are in the ratio 2:3:3:4. Find the degree measure of the biggest<span> angle of quadrilateral ABCD.</span>
Steps:<span>Add the terms 2x + 3x + 3x + 4xEquate the sum of the terms to 360Solve for xDetermine the angle measures in degrees.</span>Solve
2x + 3x + 3x + 4x = 360
12x = 360
x = 360/12
x = 30
Even though we know x = 30 we aren't done yet. We multiply 30 times 4 to find the biggest angle. Since 30 times 4 = 120, the biggest angle is 120 degrees. Likewise, the other angles are 3*30=90, 3*30=90, and 2*30 = 60.