Mathematics

Calculate the value of $$x :$$ 


SOLUTION
(a) straight line
$$\Rightarrow 2x+3x= 180^{\circ}$$
$$5x= 180^{\circ}$$
$$x= 36^{\circ}$$

(b) Right angle
$$\Rightarrow 5x+4x= 90^{\circ}$$
$$9x= 90^{\circ}$$
$$x= 10$$

$$(c) 2x+x+4x+3x= 360^{\circ}$$
$$10x= 360^{\circ}$$
$$x= 36$$

$$(d) 3x-5+x+20+65^{\circ}= 180^{\circ}$$
$$4x+80= 180^{\circ}$$
$$4x=100$$
$$x= 25$$

$$(e)2x+x+60+2x= 360$$
$$5x=300$$
$$x= 60^{\circ}$$
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Subjective Medium Published on 09th 09, 2020
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