Question

te area of triangle ABC in the figure shown here is 52.5 cm². find the area of triangle BDC​

Answer 1

Answer:

area = 1/2bh

52.5cm² = 1/2*b*7.5cm

52.5cm²/7.5cm = 1/2b

7cm = 1/2b

b = 7cm*2

b=14cm

area of ΔBDC = 1/2bh

                           1/2*14cm*4.5cm

                           7cm*4.5cm

                            31.5cm²