Question

Question 6

The cost of levelling a triangular plot whose sides are 30m, 72m and 78m respectively at the rate of Rs.9 ​

Answer 1

Answer:

108 Rs.

Hope it helped you

Answer 2

Step-by-step explanation:

s=230+72+78=2180=90

∴ Area of Δ=90(90−30)(90−72)(90−78)m2

=90×60×18×12m2=1080m2

Area of the Δ with bae ( 72 m)

=21×72×altitude=1080

∴ Required length of altitude =721080×2=30m