Mathematics 4024 · O Level · Area and perimeter

Area and perimeter — practice question

$ABCDE$ represents the building’s cross-section. Every length is measured in metres.
(a)[3]

Calculate the value of $DC$.

(b)[3]

Calculate the angle $EAB$.

(c)[4]

Calculate the cross-sectional area.

(d)[2]

A model of the building is constructed at scale $1:50$. What is the area of the model’s cross-section? Give your answer in square centimetres.

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