Workout

Question 1(a):  45cm squared

Question 1(b):  156.3cm squared

Question 1(c):  52.6cm squared

Question 1(d):  69.3cm squared

Question 1(e):  27.6m squared

Question 1(f):  41.97 square miles

Question 2(a):  72.32 cm squared

Question 2(b):   28.6 cm squared

Question 2(c):    33.1cm squared

Question 3(a):  31.3 cm squared

Question 3(b):   470.1 cm squared

Question 3(c):   50.1 mm squared

Question 4(a):   8.5cm

Question 4(b):  7cm

Question 4(c):  7.9cm

Question 5(a):  78.9 degrees

Question 5(b):  31.6 degrees

Question 5(c):   30 degrees

Apply

Question 1(a):  12.7 cm squared

Question 1(b):  81.97 cm squared

Question 1(c):  367.4 cm squared

Question 2:    26.9cm squared

Question 3:  993 square metres

Question 4:   44.959 cm squared

Question 5:  36.862 cm squared

Question 6:    Video

 

sine, sin, triangles