SSC (English Medium) Class 8Maharashtra State Board
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Find the Areas of Given Plots. (All Measures Are in Metres.) - SSC (English Medium) Class 8 - Mathematics

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Question

Find the areas of given plot. (All measures are in metres.)

 

Solution

 

Ar of Δ PQA = `1/2 xx` QA x PA = `1/2 xx 30 xx 50` = 750 m²

Ar of Δ PBT = `1/2 xx` PB x BT = `1/2 xx 60 xx 30` = 900 m²

Ar of Δ SBT = `1/2 xx` SB x BT = `1/2 xx 90 30` = 1350 m²

Ar of Δ RCS = `1/2 xx` RC x CS = `1/2 xx 25 xx 60` = 750 m²

Ar of QRCA = `1/2` (QA + RC) x AC = `1/2 xx (50 + 25) x 60 = 2250 m²

Ar os PQRST = Ar of Δ PQA + Ar of Δ PBT + Ar of Δ SBT + Ar of Δ RCS + Ar of QRCA.

= 750 + 900 + 1350 + 750 + 2250

= 6000 m²

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APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 15: Area
Practice Set 15.5 | Q: 1.1 | Page no. 102
Solution Find the Areas of Given Plots. (All Measures Are in Metres.) Concept: Area of a Triangle by Heron’S Formula.
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