One method to see it's a trapezoid is to find the slope of lines BC and AD.
The slope formula is
m = (y2-y1)/(x2-x1)
You should find that BC and AD both have the same slope (of -1), so that means the lines are parallel. That proves we have a trapezoid.
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To prove this trapezoid is isosceles, you can use the distance formula
to find the lengths of AB and CD (the two non-parallel sides). You should find that AB = CD.
Because AB and CD are horizontal and vertical respectively, this means you can simply count out the spaces to find that AB and CD are 3 units each. For any other rotated version of this trapezoid, use the distance formula instead.
Answer:
Isadora necesitará un papel decorativo de 12.18m ^ 2
Step-by-step explanation:
La clave para resolver esta pregunta es conocer la forma de la habitación que Isadora quiere cubrir.
Mirando la medida en la pregunta, podemos deducir que la forma de la habitación que Isadora quiere cubrir es rectangular. Por lo tanto, para obtener los metros cuadrados de papel decorativo necesarios, lo que debemos hacer es calcular el área de la habitación rectangular.
Matemáticamente, el área de la habitación rectangular es = Espesor de la habitación × longitud de la habitación = 4.35 × 2.80 = 12.18 m ^ 2
That they are congruent. to prove they are congruent you must use one of the congruent triangle postulates which are <span>SSS, SAS, ASA, AAS and HL. side side side means that if all sides are congruent than the triangle is congruent. side angle side says the same about a congruent included angle with two congruent sides. angle side angle means a congruent included side in between two congruent angles. angle angle side says that two angles and an excluded side means the triangles are congruent. and hypotenuse leg means that if the hypotenuse and one leg are congruent than the whole triangle is congruent. (this only works on right triangles)</span>
The answer is D write the first 4 terms by inputting the previous value into.equation
