Corbettmaths

Workout

Question 1

(a)  Right angle

(b)  Scalene

(c)  Isosceles

(d)  Equilateral

(e)  Isosceles

(f)  Scalene

Question 2

Isosceles right angle triangle … or … Right angled isosceles triangle

Question 3:  A triangle like Q1(a)

Question 4:  A triangle like Q1(c)

Question 5:  A triangle like Q1(b)

Question 6:  A triangle like Q1(d)

Apply

Question 1:  Isosceles

Question 2:  Equilateral

Question 3:

(a)  False

(b)  True

(c)  True

Question 4:

The lengths of the two shorter sides need to add together to be larger than the longest side in order for the sticks to make a triangle.

or… the two shorter sticks would not meet if they were joined to the ends of the 10cm stick.

Question 5:

The angles in a triangle add together to equal 180°. If there is a right angle (90°) and an obtuse (greater than 90°), then just those two angles add together to greater than 180°.

 

 

Workout

Question 1

(a)  1026.3 cm³

(b)  11.8 cm³

(c)  150.8 cm³

Question 2

(a)  540𝛑  cm³ 

(b)  180𝛑  mm³

(c)  3750𝛑  cm³

Question 3

(a)  19.5cm

(b)   5.25cm

(c)   8.3cm

Question 4

(a)  3.05cm

(b)  4.9cm

(c)  9.2cm

Apply

Question 1:   418.9   cm³

Question 2:   11.616 kg

Question 3:    6.21 cm

Question 4:   1017.9 cm³

 

Workout

Question 1:

(a)  12.5N/cm²             (b)  750N/m²              (c)  108N/cm²           (d)  11.81N/cm²

(e)  18541.43N/m²

Question 2:

(a)  160N                        (b)  7500N                    (c)  5412N                  (d)  2400N

(e)  22500N

Question 3:

(a)  21cm²                 (b)  9.544m²                  (c)  0.05m²                 (d)  19.725cm²

Apply

Question 1:     36000N/m²

Question 2:     5.1N/cm²

Question 3:      Smaller cube – 3.125N/cm²

Question 4:      147N

Question 5:      2249.86g/cm²