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Unformatted text preview: LNM = 58º ML = 14.8 cm find MN Given triangle ABC has C = 67º B = 42º In triangle ABC A = 56º Given triangle ABC has find B, b, c 7. In the triangle ABC a = 7.4 cm b = 8.9 cm A = 47º. Calculate C.
Use a, b and C to find the area of the triangle. 8. Triangle ABC has AC = 3.24 cm, AB = 5.53 cm and ∠ ABC = 32º. Find its area. 9. Triangle XYZ has ∠ XYZ = 71º ∠ YXZ = 33º YZ = 15.8 cm. Find its area. 10. A quadrilateral ABCD has these dimensions
AB = 4.1 cm
BC = 5.2 cm
BD = 3.75 cm
Find the sizes of (i) ∠ BDA
(ii) ∠ BDC ∠ BCD = 35º
(iv) ∠ ABC B 11. A 12. ∠ BAD = 45º
(iii) ∠ ADC 55
300 metres In the diagram, A and C represent the positions of two boats.
They are 300 metres apart and both are racing to reach the buoy at B.
Calculate how far each has to go. C An isosceles triangle has two equal angles of 72º and two equal edges of 6.7 cm.
Find the length of the third edge.
Q 13. The diagram on the right is the plan view of a field.
A survey has produced the foll...
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- Spring '14