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In a quadrilateral ABCD, ZA = 72ยบ and C is the supplementary of LA. The other twoangles are 2x-10 and x + 4. Find the value of x and the measure of all the angles. |
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Answer» I don't know answer so please tell me you A=72 B=114 C=108 D=66 X=62 angle c=180-72=108°now,2x-10+x+4+72+108=3603x-6=1803x=186x=62° A=72 B=114 C=108 D=66 X=62 angle A=72 degreeangle Cis the supplement of A=180-72=108angle C =108degreesum of all angles=360 degree72+108+2x-10+x+4=360180-10+4+2x+x=360166+3x=3603x=360-1663x=294x=294/3x=98angleB=2×98-10angle B=186degreeangle D=98+4angle D=102degree |
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