Science, asked by jungkookie81, 2 months ago

Use a protractor and ruler to draw a line perpendicular (90°) to the horizontal line in the centre.

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Answered by optimindian
0

Answer:

. CONSTRUCTION OF ANGLES

Construction of copy of an angle

An exact copy of a line segment can be constructed using a ruler and a compass.

Construction of a copy of an angle YXZ.

Draw a line AB.

Mark any point O on AB.

Place the compass pointer at vertex X of the given figure and draw an arc with a convenient radius, cutting rays XY and XZ at points E and F, respectively.

Without changing the compass settings, draw an arc on line AB from point O. It cuts line AB at P.

Set the compass to length EF.

Without changing the compass settings, draw an arc from P cutting the previous arc at point Q.

Join points O and Q.

Hence, ∠POQ is the required copy of ∠

Explanation:

Construction of a 90° angle

Draw line land mark point P on it.

Draw an arc with P as the centre and a convenient radius cutting line lat Q.

Draw another arc with Q as the centre and the same radius cutting the first arc at R.

Draw an arc with R as the centre and the same radius cutting the first arc at S.

Join points P and R.

Join points P and S.

90° lies to the centre of 60° and 120°.

Draw an arc with R as the centre and a radius more than half the length of RS in the interior of ∠

Draw another arc with S as the centre and the same radius so that it intersects the previous arc at T.

Join points P and T.

PT is the perpendicular line to PQ.

∠QPT is the required angle measuring 90°.

Answered by shrinwanti369
1

Answer:

I wasn't able to give answer what u have asked now.so I am giving it here

Explanation:

(5/2x-7)-(6/x-7)=0

=>5/2x-7=6/x-7

=> 12x-42=5x-35[by cross multiplication]

=> 12x-5x=42-35

=> 7x=7

=> x= 1

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