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Give answers which are lengths correct to three significant figures. Give answers in degrees correct to one
decimal place.
1. In the right-angled triangle MNO, MO = 4.5 metres and angle MON = 32o. Calculate the length of MN.
2. GHI is a right triangle. GH = 8
cm and HI = 7 cm. Angle H = 90°. Calculate the size of angle HIG.
3. UVWX is a dart.
a) Calculate the length of side UV. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
b) Calculate the size of angle UXW.
4. Square-based pyramid PQRST is shown in the diagram below. All the edges are 3 cm in length.
a) Calculate the
length of PR.
b) Calculate the vertical
height, MT.
c) Calculate the angle
between PT and the base PQRS.
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