solution of triangle
ADB=25 degree , AD=2BO=8cm, DC=3cm.
The shape is now become 3-D. it has a height of 8cm. Now have a new line which is AZ, BY, CW, DX. Area WXZY is half of the area of ABCD. WXZY is enlargement from centre O.
Find the angle between ZAW and WXZY. (HINT: relate K^2 * area of object, watch out visual problem.)
Answer leave as nearest integer, no need write symbol of tetha.
The answer is 77.
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1 solution
to nearest integer=77