Question

PQR is an equilateral triangle with side 8
cm. On one of its sides PR, a right angled
triangle PRS is drawn with PRS= 90° and
RS = 12 cm. Find the area of PQRS.​

Answer 1

Answer:

Area of PQRS is 75. 68cm²

First find area of triangle PRS by 1/2x base x height where base is 12cm and height is 8cm

Then find the area of triangle PQR by formula of equilateral triangle

put the value of

$\sqrt{3} = 1.73$

Then add both area then you get area of PQRS