Question 15

loading...

Prev/Next links

waecmaths question: 

In the diagram PRST is a square. If $\left| PQ \right|=24cm,\text{ }\left| QR \right|=10cm\text{ and }\angle PQR={{90}^{\circ }}$ , find the perimeter of the polygon PQRST

Option A: 

112cm

Option B: 

98cm

Option C: 

86cm

Option D: 

84cm

waecmaths solution: 

$\begin{align}  & PR=\sqrt{{{24}^{2}}+{{10}^{2}}}=\sqrt{576+100}=\sqrt{676} \\ & PR=26cm \\ & \text{Perimeter of }PQRST=\left| PQ \right|+\left| QR \right|+\left| RS \right|+\left| ST \right|+\left| TP \right| \\ & \text{Perimeter of }PQRST=(24+10+26+26+26)cm \\ & \text{Perimeter of }PQRST=112cm \\\end{align}$

maths year: 
maths topics: