Cite
MLA Citation
A. F. Beardon. “101.34 The area of a quadrilateral.” Mathematical gazette, vol. 101, no. 552, 2017, pp. 492–494. http://access.bl.uk/ark:/81055/vdc_100050610456.0x000035
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A. F. Beardon. “101.34 The area of a quadrilateral.” Mathematical gazette, vol. 101, no. 552, 2017, pp. 492–494. http://access.bl.uk/ark:/81055/vdc_100050610456.0x000035