Because the surface area is of a 2-D SHAPE to find a area of a 2-D shape is l x w
Answer: skksskk
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
negative 10×three-halves
Answer:
check: 50+160+130+20 = 360
50:160 = 5 : 16
Step-by-step explanation:et the smaller of the unknown angles be 5x and the larger of the two be 16x
so 130+20+5x+16x = 360
21x = 210
x = 10
so the two missing angles are 50° and 160°
check: 50+160+130+20 = 360
50:160 = 5 : 16