Perimedr

Quiz
•
Mathematics
•
9th Grade
•
Hard

Emlyn Hopkin
Used 24+ times
FREE Resource
9 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y petryal isod?
Answer explanation
8 + 4 + 8 + 4
= 24 cm
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y petryal canlynol?
Answer explanation
26 + 15 + 26 + 15
= 82 cm
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y petryal canlynol?
Answer explanation
0.8 + 1.4 + 0.8 + 1.4
= 4.4 cm
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y petryal canlynol?
Answer explanation
16 mm = 1.6 cm
Felly
1.6 + 8 + 1.6 + 8
= 19.2 cm
8 cm = 80mm
80 + 16 + 80 + 16
= 192 mm
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y sgwar canlynol?
Answer explanation
10 + 10 + 10 + 10
= 40 m
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Beth yw perimedr y sgwar canlynol?
Answer explanation
0.35 + 0.35 + 0.35 + 0.35
= 1.4 km
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Beth yw perimedr y siap canlynol?
Answer explanation
4 + 4 + 6 + 5 + 10 + 9
38 cm
8.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Beth yw perimedr y siap canlynol?
Answer explanation
4 + 4 + 5 + 4 + 3 + 12 + 3 + 5 + 5 + 5 + 4 + 12
= 66 m
9.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Mae sgwar yn cael ei greu gan ddefnyddio 4 o rodenni (rods) sydd a hyd hafal ac sydd wedi cysylltu'n benben (end to end).
Perimedr y sgwar hwn yw 8 m.
Nawr mae 3 o'r rhodenni hyn yn cael eu cysylltu'n benben i greu triongl hafalochrog.
Beth yw perimedr y triongl hafalochrog?
Answer explanation
Perimedr y sgwar = 8 m
8 ÷ 4 (4 ochr hafal)
= 2 m
Pob ochr yn 2 m
3 ochr hafal yn y triongl
2 + 2 + 2
= 6 m
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