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The figure below represents a quadrilateral piece of land ABCD divided into three triangular plots.

The figure below represents a quadrilateral piece of land ABCD divided into three triangular plots. The lengths BE and CD are 100m and 80m respectively. Angle ABE = 30⁰, ACE = 45⁰ and ACD = 100⁰

(a) Find to four significant figures:
(i) The length of AE.
(ii) The length of AD.
(iii) The perimeter of the piece of land.

(b) The plots are to be fenced with five strands of barbed wire leaving an entrance of 2.8m wide to each plot. The type of barbed wire to be used is sold in rolls of lengths 480m. Calculate the number of rolls of barbed wire that must be bought to complete the fencing of the plots.

Answers

Wilfykil answered the question on August 20, 2019 at 09:11

Answer Attachments

Next: Using twos complement, subtract 17₁₀ from 13₁₀ leaving your answer in binary notation.

Previous: Evaluate the following expression.

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