Estyniad arwynebedd petryal

Estyniad arwynebedd petryal

7th Grade

12 Qs

quiz-placeholder

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Estyniad arwynebedd petryal

Estyniad arwynebedd petryal

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

T Wood

Used 6+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • Ungraded

Mae hwn yn estyniad. Peidiwch frysio, a pheidiwch dyfalu os dydych chi ddim yn gwybod.

Iawn

Iawn

2.

FILL IN THE BLANK QUESTION

10 mins • 1 pt

Media Image

Beth yw arwynebedd y petryal yma?

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Perimedr sgwâr yw 30 cm

Beth yw arwynebedd y sgwâr?

49.5 cm²

52.5 cm²

48.25 cm²

15 cm²

56.25 cm²

4.

FILL IN THE BLANK QUESTION

10 mins • 1 pt

Media Image

Dimensiynau papur A4 yw 21 cm gan 297 mm.

Beth yw arwynebedd papur A4 mewn cm2?

Peidiwch rhuthro. Cyfrifwch yn ofalus!

5.

FILL IN THE BLANK QUESTION

10 mins • 1 pt

Media Image

Mae un tun o baent efo digon i baentio 5 m2 o wal.

O leiaf sawl tun sydd angen i baentio wal sydd efo uchder 2.5 m a hyd 5 m?

6.

FILL IN THE BLANK QUESTION

10 mins • 1 pt

Media Image

Mae rhedfa (runway) efo lled 80 m a hyd o 3 km. Beth yw arwynebedd y tarmac sydd angen ar gyfer y rhedfa mewn km2 ?

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Mae hyd y petryal 2 cm yn fwy na'r lled, n

Arwynebedd y petryal yma yw 24 cm2

Beth yw gwerth y lled, n?

n = 4 cm

n = 5 cm

n = 7 cm

n = 8 cm

n = 12 cm

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