Quant Question Of The Day: 158
Geometry
Triangle ABC is isosceles, and ∠ABC = x°. If the sum of the possible measures of ∠BAC is 240°, find x.
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Quant Question Of The Day: 157
Quant Question Of The Day: 156
Triangle ABC is isosceles, and ∠ABC = x°. If the sum of the possible measures of ∠BAC is 240°, find x.
There are three possible triangles: either ∠ABC = ∠BCA, in which case ∠BAC = 180° −2x, ∠ABC = ∠BAC, in which case ∠BAC = x, or ∠BAC = ∠BCA, in which case ∠BAC = (180−x)°/ 2 . These sum to (540−3x)°/ 2 , so we have (540−3x)°/2 = 240
⇒ x =20°
Quant Question Of The Day: 157
Quant Question Of The Day: 156
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good information
By Những dòng bồn cầu thông minh ... , 1 month ago
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