Various dilations of square A are shown. Which square was obtained by dilating square A by the scale factor of
1 answer:
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Full Question:
Various dilations of square A are shown. Which square was obtained by dilating square a by the scale factor of 3.
Answer:
E
Step-by-step explanation:
The square a is a 2 unit x 2 unit square. With scale factor of 3. Any unit length of the object must be multiplied by 3
In this case, since the object side is 2, the image side must be 2x3 = 6 units.
Therefore, the dilation of square A with factor of 3 is square E
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Answer:
Step-by-step explanation:
→ We know that co-interior angles add up to 180°, so we can set up an equation
x + 17 + 4x + 3 = 180
→ Collect the x terms
5x + 17 + 3 = 180
→ Collect the integers
5x + 20 = 180
→ Minus 20 from both sides to isolate 5x
5x = 160
→ Divide both sides by 5 to isolate x
x = 32
⇒ Now we know the value of x, we can substitute it in back into m∠f because we know angles on a straight line add up to 180°
4x + 3 when x = 32 ⇔ 4 × 32 + 3 ⇔ 128 + 3 ⇔ 131