Points $A,B,P$ lie on a straight line, with $B$ between $A$ and $P$, and $BC\perp AP$. Giv

Question

Points $A,B,P$ lie on a straight line, with $B$ between $A$ and $P$, and $BC\perp AP$. Given $AP=18$ cm, $AC=15$ cm and the area of $\triangle APC$ is $81\text{ cm}^2$, find $A$ $B$ $C$ $P$ $15$ Area of $\triangle APC=81\text{ cm}^2$ Give non-exact lengths and areas to 3 significant figures, and angles to 1 decimal place.

Accepted Answer

(a) $9$ cm (b) $3\sqrt{13}\approx10.8$ cm (c) $56.3^\circ$.

Compound triangle from a given area

Compound triangle from a given area

Solution:

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