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Unformatted text preview: ght of 15 cm?
The necessary square can be made smaller if the net is rotated
through 45º relative to the square. What size of square would
be needed for the above pyramid in that case? 7.3 cm (a) Cone 2 2.1 cm (b) 10.3 cm Cone 3 (c) 13.6 cm 19.7 cm © Frank Tapson 2004 [trolPT:11] base
radius t 5.4 cm igh Cone 1 he slant
height nt perpendicular
height sla base
radius perpendicular
height 9. This table gives some details of 3 different rightcones.
Calculate the missing values shown as (a) (b) (c) T/11 Trigonometry
Find the size of the angle marked ? in each of these rightangled triangles.
Drawings are NOT to scale. 1 2 3 4 0.488
1.41 0.301 1 ?
1 ?
? 1 ?
1 1 6 5 7 ? ? 8 ? ?
0.834
3.62 1.65 1.09
1
1 1 10 9 1 11 12 1 1
? 1
0.419
1.77 5 ? 3.3 ?
? 1 13 14 ? 16 15
9.3 9.1 3.7 7.3 6.7 4 ? ? ? 17 18
5.6 19 ? 12.4 8.5 20
? 14 314 10.1 478 52
?
?
37
43
© Frank Tapson 2004 [trolPT:12] T/12 Trigonometry
Find the length of the edge marked ? in each of these rightangled triangles.
Drawings are NOT...
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This document was uploaded on 03/01/2014.
 Spring '14

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