2019 · Q94
Consider the following for the next three (03) items:
ABCD is a quadrilateral with AB = 9 cm, BC = 40 cm, CD = 28 cm, DA = 15 cm and angle ABC is a right-angle.
What is the difference between perimeter of triangle ABC and perimeter of triangle ADC?
Elementary MathematicsMensuration
- A4 cm
- B5 cm
- C6 cm
- D7 cm
Explanation
AC = √(9^2+40^2) = 41 cm. Perimeter of ABC = 9+40+41 = 90; perimeter of ADC = 41+28+15 = 84. Difference = 6 cm.