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WorksheetsYBD-Adolygu-Blwyddyn 9-Uwch-Modiwl 4&5 (Pythagoras & Chanrannau)
Total questions: 44
Worksheet time: 2hrs 33mins
Cynyddwch £350 â 12%
Increase £350 by 12%
(a)
Cynyddwch £520 â 26%
Increase £520 by 26%
(a)
Cynyddwch £2600 â 4%
Increase £2600 by 4%
£2704
£2730
£2756
£2678
Gostyngwch £140 â 22%
Decrease £140 by 22%
£109.20
£100.80
£30.80
£39.20
Gostyngwch £2200 â 8%
Decrease £2200 by 8%
(a)
Gostyngwch £800 â 41%
Decrease £800 by 41%
(a)
Enillodd Caiden £475 o dorri lawntiau yr haf diwethaf. Buddsoddodd yr arian hwn mewn cyfrif sy'n talu cyfradd llog o 3.8% wedi'i adlogi'n flynyddol. Beth fydd ei falans ar ôl 15 mlynedd?
Caiden earned £475 from mowing lawns last summer. He deposited this money in an account that pays an interest rate of 3.8% compounded annually. What will be his balance after 15 years?
(a)
Mae Del yn gwerthu ei nwyddau am £54.60, gan wneud colled o 9%.
Faint talodd am y nwyddau yn wreiddiol?
Del sells his goods for £54.60, making a loss of 9%.
How much did he pay for the goods when he bought them?
£60.00
£49.69
£59.51
£50.09
Mae Del yn gwerthu ei nwyddau am £80, gan wneud elw o 25%.
Faint talodd am y nwyddau yn wreiddiol?
Del sells his goods for £80, making a profit of 25%.
How much did he pay for the goods when he bought them?
(a)
Mae Del yn gwerthu ei nwyddau am £60, gan wneud colled o 20%.
Faint talodd am y nwyddau yn wreiddiol?
Del sells his goods for £60, making a loss of 20%.
How much did he pay for the goods when he bought them?
(a)
Cyfrifwch hyd x
Calculate the length of x
5
7
8
25
Cyfrifwch hyd x
Calculate the length of x
5.7 ft
10.6 ft
20 ft
400 ft
Beth yw'r fformiwla a ddefnyddir i ddarganfod hyd yr hypotenws?
What is the formula used to find the length of the hypotenuse?
a2+b2=c2
a+b=c
a2-b2=c2
c-a=c
Pa hyd yw'r hypotenws?
Which length is the hypotenuse?
x
z
w
I ba fath o drionglau ydyn ni'n defnyddio'r Theorem Pythagoras?
For which type of triangles do we use the Pythagorean Theorem?
Ongl sgwar
Right angled
Hafalochrog
Equilateral
Isosgeles
Isosceles
Anhafalochrog
Scalene
Cyfrifwch hyd x
Calculate the length of x
(a)
Mae gwaelod ysgol sy'n pwyso yn erbyn wal yn 1.5m o waelod y wal. Mae'r ysgol yn 5.5m o hyd. Darganfyddwch pa mor uchel yw top yr ysgol uwchben y ddaear, yn gywir i un lle degol.
The bottom of a ladder leaning against a wall is 1.5m from the bottom of the wall. The ladder is 5.5m long. Find how high the top of the ladder is above the ground, correct to one decimal place.
(a)
Ydy triongl â hydoedd 8, 15, 16 yn driongl ongl sgwar?
Is a triangle with lengths 8, 15, 16 a right-angled triangle?
Ydy
Yes
nac ydy
no
Beth yw 25% o £200
Find 25% of £200
£25
£50
£100
£250
Beth yw 2/5 fel canran?
What is 2/5 as a percentage?
(a)
Beth yw 0.2 fel canran?
What is 0.2 as a percentage?
20%
2%
0.02%
0.2%
Beth yw 0.07 fel canran?
What is 0.07 as a percentage?
70%
7%
0.7%
0.07%
Beth yw 0.05 fel canran?
What is 0.05 as a percentage?
(a)
Pris newydd teledu, ar ol sel o 10% bant, yw £540. Beth oedd y pris gwreiddiol?
The new price of a television, after a sale of 10% off, is £540. What was the original price?
£594
£54
£600
£486
Pris newydd sofa, ar ol sel o 15% bant, yw £765. Beth oedd y pris gwreiddiol?
The new price of a sofa, after a sale of 15% off, is £765. What was the original price?
(a)
Pris newydd crys-t, ar ol sel o 20% bant, yw £25. Beth oedd y pris gwreiddiol?
The new price of a t-shirt, after a sale of 20% off, is £25. What was the original price?
(a)
Beth yw'r lluosydd ar gyfer cynnydd o 50%?
What is the multiplier for an increase of 50%
(a)
Beth yw 20% o £80?
What is 20% of £80?
(a)
Beth yw £832 wedi'i gynyddu 23%?
What is £832 increased 23%?
£1023.36
£987.48
£1016.78
£995.43
£640.64
Beth yw £1295 wedi'i ostwng 37%?
What is £1295 decreased 37%?
£927.30
£812.70
£1037.50
£995.43
£786.40
Beth yw £7725 wedi'i ostwng 25%?
What is £7725 decreased 25%?
£6340.50
£6025.70
£6213.40
£5793.75
£4716.25
Beth yw £460 wedi'i gynyddu 27%?
What is £460 increased 27%?
(a)
Beth yw £8450 wedi'i ostwng 87%?
What is £8450 decreased 87%?
(a)
Beth yw £6708 wedi'i gynyddu 35%?
What is £6708 increased 35%?
£9477.90
£9871.30
£9127.40
£9055.80
£7014.30
Mae Paul yn buddsoddi $4000 mewn banc sy’n talu adlog o 4% y flwyddyn. Faint fydd gwerth y buddsoddiad mewn 5 mlynedd?
Paul invests $4000 in a bank which pays compound interest of 4% per year. How much will the investment be worth in 5 years?
$4866.61
$5628.40
$6077.53
$6326.60
Mae Paul yn buddsoddi £3000 mewn banc sy’n talu adlog o 3% y flwyddyn. Faint fydd gwerth y buddsoddiad mewn 4 mlynedd?
Paul invests £3000 in a bank which pays compound interest of 3% per year. How much will the investment be worth in 4 years?
(a)
Mae Lowri yn buddsoddi £20,000 mewn banc sy’n talu adlog o 5.2% y flwyddyn. Faint fydd gwerth y buddsoddiad mewn 3 mlynedd?
Lowri invests £20,000 in a bank which pays compound interest of 5.2% per year. How much will the investment be worth in 3 years?
(a)
Cyfrifwch hyd b
Calculate the length of b
(a)
Cyfrifwch hyd c i 1 lle degol.
Calculate the length of c to 1 decimal place.
(a)
Cyfrifwch hyd yr hypotenws
Calculate the length of the hypotenuse
(a)
Cyfrifwch hyd x
Calculate the length of x
11
10
100
89
Cyfrifwch hyd c
Calculate the length of c
(a)
Cyfrifwch hyd x i 1 lle degol.
Calculate the length of x to 1 decimal place.
(a)
Beth yw'r lluosydd ar gyfer gostwng 34%?
What is the multiplier for a decrease of 34%
(a)
