Lin drew a triangle and a dilation of the triangle with scale factor 2
1 answer:
Answer:
Step-by-step explanation:
Lin drew a triangle and a dilated triangle with a scale factor of .
That means image of the original triangle is smaller than the preimage.
1). Center of dilation will be point A.
Since, triangle ACB has been reduced to form triangle ADE by a scale factor of
Scale factor = =
AD =
So the center of dilation is point A.
2). Since triangle ADE is half of the triangle ACB, triangle ACB is preimage (original) and triangle ADE is an image after dilation.
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Answer:
(x² - 9)(x² - 2) = 0
x = 3 or √2
Step-by-step explanation:
To factor a polynomial, you need to find two expression that when multiplied together using FOIL (first, outside, inside, last) will produce the polynomial. In this case the polynomial can be factored into:
(x² - 9)(x² - 2) = 0
Setting each of these expressions equal to '0':
x² - 9 = 0 or x² = 9 so √x² = √9 or x = 3
x² - 2 = 0 or x² = 2 so √x² = √2 or x = √2
A two-column proof incorrectly proving that the three angles of ΔPQR add up to 180°
- Line YZ should be drawn parallel to PQ
YZ is drawn parallel to PQ through the point R
<ZRP + <PRQ + <QRY = <ZRY
<ZRP = <RPQ [YZ // PQ]
<QRY = <PQR [YZ // PQ]
From the above,
<PQR + <RPQ + <PRQ = <ZRY =
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