Maharashtra State BoardSSC (English Medium) 8th Standard
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Draw an Acute Angled Pqr. Draw All of Its Altitudes. Name the Point of Concurrence as ‘O’. - Mathematics

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Draw an acute angled Δ PQR. Draw all of its altitudes. Name the point of concurrence as ‘O’.

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Steps of construction :
(i) Draw any acute angled ∆PQR.
(ii) With P as centre, draw an arc that cut the side QR at X and Y.
(iii) With X as centre and radius more than half of XY, draw an arc below QR. With Y as centre and same radius draw another arc that cut the previous arc at A.
(iv) Join PA that intersect QR at L. So, PL is the altitude on side QR.
In the same manner, draw QM⊥PR and RN⊥PQ.
Hence, ∆PQR is the required triangle with altitudes PL, QM and RN on sides QR, RP and PQ respectively with O as the point of concurrence of all the three altitudes.

Concept: Altitudes of a Triangle
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Balbharati Mathematics 8th Standard Maharashtra State Board
Chapter 4 Altitudes and Medians of a triangle
Practice Set 4.1 | Q 2 | Page 22
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