which diagram is a net for this prism? what is the surface area of the rectangular prism? square centimeters
which diagram is a net for this prism? what is the surface area of the rectangular prism? square centimeters
Answer
Explanation:
Step1: Recall surface - area formula
The surface - area formula for a rectangular prism is $SA = 2(lw+lh + wh)$, where $l$ is the length, $w$ is the width, and $h$ is the height. Here, $l = 13$ cm, $w = 5$ cm, and $h = 14$ cm.
Step2: Calculate $lw$
$lw=13\times5 = 65$ cm².
Step3: Calculate $lh$
$lh = 13\times14=182$ cm².
Step4: Calculate $wh$
$wh = 5\times14 = 70$ cm².
Step5: Substitute into the formula
$SA=2(65 + 182+70)$. First, add the values inside the parentheses: $65 + 182+70=317$ cm². Then, multiply by 2: $SA = 2\times317=634$ cm².
Answer:
634