Surface area = 56 cm2
Explanation:
Area of square base = Side x Side = 4 x 4 = 16 cm2
Area of triangle = 1/2 x Base x Height = 1/2 x 4 x 5 = 10 cm2
Area of 4 triangles = 10 x 4 = 40 cm2
Surface area of pyramid = 16 + 40 = 56 cm2
18 x 20 = 360
360 / 20 = 18
So 18 is the answer
Answer:
63=1×63,3×21,or 7×9
factors of 63 are - 1,3,7,9,21,63
prime factorization:63=3×3×7=63=3²×7
-2,-7 because you go the same ammount in the opposite direction
