3 years ago

(3+ 1/2) x 14 pls help me

Mathematics

2 answers:

san4es73 [151]3 years ago

6 0

Answer:

Step-by-step explanation:

VikaD [51]3 years ago

5 0

Answer:

(3+1/2)×14

{(6+1)/2} ×14

7/2× 14

7×7

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iren2701 [21]

Answer:

Part 1)

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Step-by-step explanation:

Part 1)

Let

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we know that

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$sin(x)=\frac{16}{20}$

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$SA=b^{2}+4[\frac{1}{2}(b)(h)]$

where

b is the length side of the square

h is the height of the triangular lateral face

In this problem

$h=b/2$ -------> by an 45° angle

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3 years ago