Page 455 - Math Smart - 7

5. 10:6:1 Try and Apply (Pg 301)
6. a)3:2 b)1 c)1 16 d)6:5 e)3:4 f)7 : 3 lESand DC
9)1 : 1 h)7 i)2: 1 j)7:4 k)2;3 I) 5:11 2. BAand £C, AC and ED
m)4:3 n)8 o) 4 3 p) 5 : 87. a) 7 : 5 b)5:7
8. a) 3 : 8 b)4 c)6 7 d)9:5 Check My Understanding (Pg 303)
1. Draw a line that is parallel to AB and 4cm away from AS
Check My Understanding (Pg 292) and label it PQ.
1. Asyraff 2. Draw a line that is parallel to CD and cuts through point
2. Lily gets ~ and Chloe gets | Yand label itXZ.
3. a) Draw on line MN and line OP
3. a) $34 and $51 b) $40 and $10 b) Draw □_ at the intersection of line MN and line QR.
c) $150 and $60 d) 16 kg and 56 kg c) 6 mm
e) 36 and 6 f) 16 and 36 d) Confirm that the angle at the intersection between line
g) $90 and $9 h)$120 and $$280 OP and QR is 90° using a protractor.
i) $14.40 and $9.60 4. a) Draw a line and label it EF. Then draw a line that is
4. 45 white orchids, 180 pink orchids perpendicular to EF and label It GH.
b) Draw a line that is 60 mm long and label it JK. Then
5. 45 blue sweets
6. Iris gets 1.41 and Ryan gets 0.6/ draw a line that is perpendicular to JK and 55 mm
7. a) Ryan gets $480 and Benjamin gets $800 long and label it GH.
b)$1280 c) Draw a line and label it UV. Then draw a line that is
parallel to UV and label It WX.
8. 3 : 19
9. 35 d) Draw a line that is 50 mm long and label it MN. Then
draw a line 30 mm away from line MN and 50 mm
Recall (Pg 293) long and label it OP.
a)6,12, 15 b)3:5 c)1f d)2160
Check My Understanding (Pg 305)
Check My Understanding (Pg 294) Draw squares that measure 4.7 cm by 4.7 cm, 3.5 cm by
1. 8)5:2 b)3: 1 3.5 cm and 5.4 cm by 5.4 cm.
c) No, Sarah mixed it flour and sugar in the ratio 5 : 2
:
while Valerie did it in a 3 1 ratio Check My Understanding (Pg 307)
1. Draw a rectangle that measures 3.6 cm by 4.5 cm.
Check My Understanding (Pg 296) 2. Draw a rectangle that measures 11 cm by 5.2 cm.
1. 64 000 3. Draw a rectangle that measures 8 cm by 6 cm.
2. a)$26 b) $71.50 AC = 10 cm
3. a) $4.45 b) $10.68 c) $22.25 4. Draw a rectangle that is 3 cm by 4 cm.
4. a)252g b)126g c) 1008 g
5. $70.08 Check My Understanding (Pg 312)
6. a) 140 g b) 1120 g 1. Draw triangles that have the same sides and angle as
7. a) 1 : 6 b)480 ml stated
8. 8656 Pesos 2. a) Draw a right-angle triangle with a 8 cm base and
9. a) $78.40 b)660 Rands height of 6 cm.
b) 10 cm
Revision (Pg 297) c) 37°
1. 6 glasses of Orange Squash and 18 glasses of Water 3. Draw a right-angle triangle with a 5.5 cm base (PQ) and
2. 6 bowls of Fish Stock and 15 bowls of Water height {QR) of 3.5 cm.
4. Draw a right-angle triangle with a 4.5 cm base (YX) and
3. 1000
4. a)1 :6 b)4:7 c)6:5 d)3:4 height (YZ) of 7 cm.
e) 25 : 6 f) 4 : 9 5. Draw a triangle that has sides of 4.5 cm where each
5. a)7:1 b)1 : 15 c) 1 : 16 interior angle is 60° and label it ABC.
6. a) 70 and 210 b) 100 and 25 6. Draw a triangle that has sides of 7 cm where each
c) $225 and $90 d) $480 and $840 interior angle is 60° and label it JKL
7. Draw a triangle that has a base (QR) that is 9 cm long
7. 20 080
8. a) $27.12 b)$6.78 and two sides that are of equal length and label it PQR.
9. a)2 : 1 b) 150 g The angles in the triangle should measure 50°, 50° and
c) 75 g of Flour, Half a Pinch of Salt, 80°.
37.5 g of Butter, 22.5 ml of Water 8. Draw a triangle that has a base (JK) that is 7 cm long
d) 375 g of Flour, Pinch of Salt, and two sides that are of equal length and label it JKL.
187.5 g of Butter, 112.5 ml of water The angles in the triangle should measure 70°, 70° and
10. a)14 b) 3 : 5 40°.
9. Draw a triangle that has sides of 6.5 cm where each
11. 144c m^
interior angle is 60°.
Unit 14
Check My Understanding (Pg 316)
Recall (Pg 300) 1. Draw a parallelogram with measurements 6 cm by 5 cm
1. a) JE, CG b) IF, CO c) IF, JE where the interior angles are 130°, 50°, 130° and 50° and
2. Draw lines that are of the stated lengths label it.