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How do you know that a trapazoid measures 360 degrees?
Consider the trapezium (or trapezoid) ABCD such that AD is parallel to BC.Then angles DAB and ABC are consecutive interior angles (or co-interior angles) and sum to 180 deg.Similarly, angles ADC and DCB sum to 180 deg.Therefore, the sum of all four is 180 + 180 = 360 deg.
How do you simplify 3x squared plus 7x minus 40 divided by x plus 5?
Factorise it: (x + 5)(3x - 8)
How do you find the unknown side of a quadrilateral with 3 known sides and 4 angles?
Several options:Draw it and measure the missing side.Use coordinate geometry. You can draw the base and two of the sides since you know the angles that these lines make and their lengths. You therefore know their upper end points and so calculating the length of the fourth side is trivial.Consider the triangle ABC. Sides AB and BC are known as is angle ABC. So you can use the sine rule to calculate AC and angles CAB and ACB. Angle DAB is known so angle DAC = DAB - CAB, angle ACD = BCD - ACB. In triangle ACD, two angles are known so all three are known. Use the sine rule again to find CD.
What is the meaning of dab?
A skillful hand; a dabster; an expert., A name given to several species of flounders, esp. to the European species, Pleuronectes limanda. The American rough dab is Hippoglossoides platessoides., To strike or touch gently, as with a soft or moist substance; to tap; hence, to besmear with a dabber., To strike by a thrust; to hit with a sudden blow or thrust., A gentle blow with the hand or some soft substance; a sudden blow or hit; a peck., A small mass of anything soft or moist.
Where is the roman numeral III in you spy super challanger on page 9?
It's almost smack dab in the center of page 9. It's on the face of the yellow clock, which is between the fish and the masquerade mask.
