What is the difference in area (in cm²) of ΔABC having sides of 10 cm, 20 cm and 20 cm, and a right angled triangle ΔPQR with hypotenuse of 13 cm and ...
Question
What is the difference in area (in cm²) of ΔABC having sides of 10 cm, 20 cm and 20 cm, and a right angled triangle ΔPQR with hypotenuse of 13 cm and one of the perpendiculars of 12 cm?
Note: √2 = 1.41, √3 = 1.73, √7 = 2.65, √13 = 3.61, √15 = 3.87, √21 = 4.58