Answer:
A
Step-by-step explanation:
Big Brain
Answer:
<em>Similarity doesn't changes angle measures</em>
- ∠U = 56°, ∠U' = 3x - 16
- ∠U = ∠U'
a) 3x - 16 = 56 ⇒ 3x = 72 ⇒ x = 24°
b) ∠T = x + 46 = 24 + 46 = 70°
c) <u>Scale factor:</u>
- k = S'T'/ST = 19/57 = 1/3
<u>Find y using known sides and scale factor:</u>
- U'V'/UV = 1/3
- (y + 4)/63 = 1/3
- y + 4 = 21
- y = 21 - 4
- y = 17
Step-by-step explanation:
uhm wth is that..........???
- Charmi cut a ribbon into 19 pieces . 7 of them are 11 cm each and the rest are 8 cm each .
- What was the length of the ribbon at first ?
<h2>Explanation:</h2>
<h3>Given:</h3>
- Total pieces of ribbon is 19.
- Rest (12) pieces are of 8 cm.
<h3>To Find:</h3>
- What was original the length of ribbon ?
<h3>Solution:</h3>
Let original length of ribbon was x cm. Therefore,
➟ Length of ribbons of 11 cm = No. of pieces(11)
⟹ Total length = 7(11)
⟹ 77 cm....(1)
➼ Length of ribbons of 8 cm = No. of pieces(8)
⟹ Total length = 12(8)
⟹ 96 cm.....(2)
<em><u>According</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>question</u></em><em><u>, </u></em>
Original ribbon = Equation 1 + Equation 2
- ⟹ x = Sum of length of ribbons (11 cm and 8 cm)
- ⟹ x = 77 + 96
- ⟹ x = 173 cm
Hence, original length of ribbon at first was 173 cm. (Option a is correct)
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