Answer:
Step-by-step explanation:
Answer:
7(3 + 7)
Why:
7x3=21
7x7=49
Answer:
9
Step-by-step explanation:
To calculate c from the first right angle triangle,
C2 = 36 + 16
C = sqrt(52)
To calculate a from the bigger right angle triangle,
B2 + 52 = (a + 4)2
B2 - a2 = -36 + 8a
A2 + 36 = B2
Solving both by elimination,
A = 72/8
=9
2 3/4 divided by 7=0.39285714285
Answer:
It would be D, a rectangle.
Step-by-step explanation:
the cross section is what shape forms from where the knife cuts.
