Unformatted text preview: ∠ BAD = 48º
(a) the area of the parallelogram
(b) the length of the longer diagonal AC. In the triangle PQR, S is the foot of the perpendicular from Q to PR.
QS = 7.5 cm
∠ QPR = 75º ∠ QRP = 40º
(a) the length of SR
(b) the length of PS
(c) the length of QR
(d) the perimeter of triangle PQR
(e) the area of triangle PQR.
P © Frank Tapson 2004 [trolPT:25] M Q S R Trigonometry T/28 Drawings on this sheet are NOT to scale. 1. The drawing on the right represents a cuboidal shape made
of wire with its vertices identified as ABCDEFGH.
Sizes are: AD = 15 cm AE = 10 cm CD = 25 cm
(a) ∠ GDC
(b) ∠ EDA
(c) ∠ EFH
(d) length of face diagonal DG
(e) length of face diagonal BD
(f) length of space diagonal DF
(g) ∠ FDG
(h) ∠ FDB F G
H D 2. A cube has an edge-length of 10 cm.
Calculate the angle between its space diagonal, and one of its face diagonals.
E 3. F
D The drawing on the left shows a wedge ABCDEF.
Faces ABCD and BEFC are both rectangles and
are at right...
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- Spring '14
- Trigonometry, Frank Tapson