ABCDEFGH is a cube of 12cm. (a) Find: (i) AC (ii) EC (b) The angle between EC and the plane ABCD. (c) The angle between the plane...

      

ABCDEFGH is a cube of 12cm.

(a) Find:
(i) AC
(ii) EC
(b) The angle between EC and the plane ABCD.
(c) The angle between the plane EBCH and BCGF

  

Answers

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Kavungya answered the question on November 15, 2019 at 08:31

Next: Two circles of radii 4cm and 8cm are positioned in such way that theirs centres are 15cm apart as shown below. Find x.
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