
Matematica e geometria
Authored by Mariangela Spezia
Mathematics
9th Grade
10 Questions
Used 1+ times

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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è il risultato di 15 × 12?
180
150
200
135
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto fa 7²?
14
56
42
49
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In un triangolo rettangolo, se i cateti sono 6 e 8, qual è la lunghezza dell'ipotenusa?
14
10
16
12
Answer explanation
Teorema di Pitagora: a² + b² = c², quindi 6² + 8² = c² → 36 + 64 = c² → 100 = c² → c = 10
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto è il perimetro di un quadrato con lato di 5 cm?
25
10
15
20
Answer explanation
Formula del perimetro del quadrato: P = 4 × lato → P = 4 × 5 = 20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In un cerchio, quale delle seguenti è una proprietà della circonferenza?
È la lunghezza della linea retta che passa per il centro del cerchio
È la distanza dal centro a un punto sulla circonferenza
È il perimetro del cerchio
È il raggio del cerchio
Answer explanation
Formula della circonferenza: C = 2πr, dove r è il raggio
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se un angolo è 90°, che tipo di angolo è?
Angolo ottuso
Angolo acuto
Angolo retto
Angolo piatto
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quanto fa 3/4 + 1/2?
1
5/4
3/2
7/4
Answer explanation
Per sommare le frazioni, bisogna trovare il minimo comune denominatore: 3/4 + 2/4 = 5/4
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