Question

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

Answer 1

area of triangle abc = 1/2*base*height

52.5. = 1/2*base*7.5

base = 14cm

area of BDC = 1/2*14*4.5
= 31.5cm^2

hence the answer is 31.5cm^2

Answer 2

Answer:

Area of triangle ABC=52.5cm^2

Area of triangel BDC= ?

Area of triangle ABC=1/2×/base×height

52.5=1/2×BC×7.5

10×52.5×2/10×7.5

14cm=

Area of ∆ BDC= 1/2base×height

. 1/2×BC×DF

. 1/2×14×4.5

. = 31.5 cm^2

Step-by-step explanation: