Step-by-step explanation:
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Answer:
21.80
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Since Δ ABC is isosceles , then AB = AC and the base angles are congruent.
∠ ACB =
=
= 65°
∠ ACB and ∠ BCE are adjacent angles and are supplementary, thus
∠ BCE = 180° - 65° = 115° → C
Answer:
B
Step-by-step explanation:
Volume =base area ×height
=(2×2)×7
Area of the object =2 area of square + 4 same faces due to the square have same length
=(7×2)+2(2×2)
2 x 4y = 12.4
4y = 6.2
y = 6.2/4
= 1.55
hope this helps