Question

find the area of a triangle whose height is 10 cm and base is 9 CM also find third side of the triangle if its another side is 12 cm and the perimeter is 36 CM ​

Answer 1

Answer:area of triangle = 45 sq. cm

third side = 15 cm

Step-by-step explanation: Area of triangle = 1/2×base ×height

                                                                          = 1/2 × 9 × 10

                                                                           = 45 sq. cm.

perimeter of triangle = sum of all sides

      36 cm                    = 9 + 12 + third side

           36  - 21              = third side

     ∴ third side of triangle = 15 cm.