Q5 of 31 Page 45

The □PQRS alongside is the map of a plot of land. Using the given measures, find its area.

Given:


ST = 13 m


QR = 60 m


PQ = 9 m


PS = 40 m


Area of Δ PQS =


⇒ Area of Δ PQS =


⇒ Area of Δ PQS = 180 sq m


Area of Δ QSR =


⇒ Area of Δ QSR =


⇒ Area of Δ QSR = 390 sq m


Area of PQRS = Area of Δ PQS + Area of Δ QSR = 570 sq m


More from this chapter

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3

If the length of the sides of a triangular plot of land are 20 m, 21 m and 13 m, what is its area?

 4

Use Heron’s formula to find the area of an equilateral triangle whose side is ‘p’.

 6

Using the measures given in the figure below, find the area of □EFGH.

 7

(1) From the measures given in the figure alongside, find the area of Δ ABC.

(2) Using Pythagoras’ theorem find the length of side AC.


(3) Find the area of Δ ABC using Heron’s formula.