20. Trigonometry
iGCSE (2021 Edition)
20.08 Trigonometry in 3D (Extended)
Interactive practice questions
All edges of the following cube are $7$7 cm long.
a
Find the length of $EG$EG. Give your answer as a surd in simplest form.
b
Find the length of $AG$AG. Give your answer as a surd in simplest form.
c
Find $x$x, the size of $\angle EGH$∠EGH.
d
Find $y$y, the size of $\angle EGA$∠EGA, correct to two decimal places.
e
Find $w$w, the size of $\angle AHG$∠AHG.
f
Find $z$z, the size of $\angle AGH$∠AGH, correct to two decimal places.
Easy
13min
A square prism has sides of length $7$7cm, $7$7cm and $17$17cm as shown.
Easy
4min
This box is to have a divider placed in as shown.
Easy
2min
The diagram shows a rectangular prism.
Easy
2min
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