Consider quadrilateral MARK. M
A
K
R
Given: MA - RK and MA || RK
Prove: AMAK ARKA
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You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii